SONY WH-CH520 Wireless Stereo Headset User Guide
- June 9, 2024
- Sony
Table of Contents
WH-CH520 Wireless Stereo Headset
Help Guide
Wireless Stereo Headset
WH-CH520
Model: YY2958
Quick Start Guide Download the app, and set up the headset
To use all functions and improved performances, update the software of the
headset and “Sony | Headphones Connect” app to the latest version. For
details, refer to the following: https://www.sony.net/elesupport/
Let’s start to use
Turning on the headset
1
Press and hold the (power) button for about 2 seconds or more until the
indicator (blue) flashes. The headset enters pairing mode automatically when
you turn on the headset for the first time after purchase.
Establishing a BLUETOOTH® connection Follow the downloaded “Sony | Headphones
Connect” app instructions.
Operating the headset You can use the buttons on the right unit of the headset
to perform the following operations.
(play) button Press once while paused: Play Press once during playback: Pause
(volume )/ (previous) button Press once briefly: Decrease the volume Press
and hold until you hear a notification sound: Skip to the beginning of the
previous track (or
the current track during playback)
+ (volume +)/ (next) button Press once briefly: Increase the volume Press and
hold until you hear a notification sound: Skip to the beginning of the next
track
For more details on operations, refer to “Controlling the audio device
(Bluetooth connection)”. To prevent burning or malfunction due to getting wet
The headset is not waterproof. If the headset is charged while it is wet with
rain or sweat, etc., this can result in burnout or malfunction.
Related information
Wearing the headset Establishing a Bluetooth connection manually Charging the
headset
Getting started
What you can do with the Bluetooth function About the voice guidance Supplied
accessories
Checking the package contents
Parts and controls
Location and function of parts
2
About the indicator
Wearing the headset Power/Charging
Charging the headset Available operating time Checking the remaining battery
charge Turning on the headset Turning off the headset
Making connections How to make a wireless connection to Bluetooth devices Easy
setup with app
Connecting with the “Sony | Headphones Connect” app
Android smartphone
Pairing and connecting with an Android smartphone Connecting to a paired
Android smartphone
iPhone (iOS devices)
Pairing and connecting with an iPhone Connecting to a paired iPhone
Computers
Pairing and connecting with a computer (Windows® 11) Pairing and connecting
with a computer (Windows 10) Pairing and connecting with a computer (Mac)
Connecting to a paired computer (Windows 11) Connecting to a paired computer
(Windows 10) Connecting to a paired computer (Mac)
Other Bluetooth devices
Pairing and connecting with a Bluetooth device Connecting to a paired
Bluetooth device
Multipoint connection
3
Connecting the headset to 2 devices simultaneously (multipoint connection)
Listening to music Listening to music via a Bluetooth connection
Listening to music from a device via Bluetooth connection Controlling the
audio device (Bluetooth connection) Disconnecting Bluetooth connection (after
use) About 360 Reality Audio
Sound quality mode
About the sound quality mode
Supported codecs About the DSEE function Making phone calls Receiving a call
Making a call Functions for a phone call Making a video call on your computer
Disconnecting Bluetooth connection (after use) Using the voice assist function
Using the voice assist function (Google app) Using the voice assist function
(Siri) Using the apps What you can do with the “Sony | Headphones Connect” app
Installing the “Sony | Headphones Connect” app Accessing support information
from the “Sony | Headphones Connect” app How to keep the software up-to-date
(for comfortable use of the headset) Important information Precautions To
prevent burning or malfunction due to getting wet
4
Licenses Trademarks Customer support websites Troubleshooting What can I do to
solve a problem? Power/Charging
Unable to turn on the headset. Charging cannot be done. Charging time is too
long. The available operating time is short (the duration of the battery is
short).
Sound
No sound Low sound level Low sound quality Sound skips frequently.
Bluetooth connection
Pairing cannot be done. Unable to make a Bluetooth connection. The headset
cannot be operated. Cannot hear the other person or the call volume is low
during calls/The other person cannot hear you or their call volume is low
during calls.
Resetting or initializing the headset
Resetting the headset Initializing the headset to restore factory settings
Specifications Specifications
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Help Guide
Wireless Stereo Headset
WH-CH520
What you can do with the Bluetooth function
The headset uses Bluetooth wireless technology, allowing you to do the
following.
Listening to music
You can enjoy music wirelessly from a smartphone or music player, etc.
Talking on the phone
You can make and receive calls hands-free, while leaving your smartphone or
mobile phone in your bag or pocket.
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Help Guide
Wireless Stereo Headset
WH-CH520
About the voice guidance
In the factory settings, you will hear the English voice guidance in the
following situations via the headset. You can change the language of the voice
guidance and turn on/off the voice guidance using “Sony | Headphones Connect”
app. For more details, refer to the “Sony | Headphones Connect” app help
guide. https://rd1.sony.net/help/mdr/hpc/h_zz/
When entering pairing mode: “Pairing” When informing the remaining battery
charge: “Battery about XX %” (The “XX” value indicates the approximate
remaining charge. Use it as a rough estimate.) / “Battery fully charged” When
the remaining battery charge is low: “Low battery” When automatically turning
off due to low battery: “Battery is empty” Note
It takes about 4 minutes when you change the language of the voice guidance.
If the voice guidance is not heard after changing the voice guidance language
or updating the software, turn the headset off and on again.
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Help Guide
Wireless Stereo Headset
WH-CH520
Checking the package contents
After opening the package, check that all of the items in the list are
included. If any items are missing, contact your dealer. Numbers in ( )
indicate the item amount. Wireless Stereo Headset USB Type-C® cable (USB-A to
USB-C®) (approx. 20 cm (7.88 in.)) (1)
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Help Guide
Wireless Stereo Headset
WH-CH520
Location and function of parts
1. Headband 2. (left) mark 3. Left unit 4. Tactile dot
There is a tactile dot on the left unit.
5. Sliders (left, right)
Slide to adjust the length of the headband.
6. (right) mark 7. Right unit 8. + (volume +)/ (next) button
There is a tactile dot on the + button. Use this dot as a guide when operating
the headset.
9. (play/call)/ (power)/ (Bluetooth) button 10. (volume )/ (previous)
button 11. Indicator (blue/orange)
9
Lights up in blue or orange to indicate the power or communication status of
the headset.
12. USB Type-C port
Connect the headset to a computer, or to an AC outlet via a commercially
available USB AC adaptor, with the supplied USB Type-C cable to charge the
headset.
13. Microphone 14. Built-in antenna
A Bluetooth antenna is built into the headset. Related Topic
About the indicator Checking the remaining battery charge
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Help Guide
Wireless Stereo Headset
WH-CH520
About the indicator
You can check various statuses of the headset by the indicator. : Turns on in blue / : Turns on in orange / -: Turns off
Turning on
— — (flashes twice in blue)
In this case, when the remaining battery charge is 20% or lower (requires charging), the indicator lights successively as
follows.
—
— (repeatedly flashes slowly in orange for about 15 seconds)
For details, see “Checking the remaining battery charge”.
Turning off
—- (lights up in blue for about 2 seconds)
When the remaining battery charge becomes low
—
— (repeatedly flashes slowly in orange for about 15 seconds)
Charging
While charging
(lights up in orange)
The indicator turns off after charging is complete.
Abnormal temperature
– — – — – (repeatedly flashes twice in orange)
Abnormal charging
—
—
—
(repeatedly flashes slowly in orange)
Bluetooth function
Pairing mode – —- – —- – (repeatedly flashes twice in blue)
Not connected —- —- (repeatedly flashes in blue at about 1-second intervals)
Connection process completed – – – – – – – – (repeatedly flashes quickly in
blue for about 5 seconds)
Connected – – – – – – – – (repeatedly flashes in blue at about 5-second
intervals)
Incoming call — — — — — — (repeatedly flashes quickly in blue)
The unconnected and connected status indications automatically turn off after a period of time has passed. They start flashing again for a period of time when some operation is performed. When the remaining battery charge becomes low, the indicator starts flashing in orange.
Other
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Updating software
—
— (repeatedly flashes slowly in blue)
Initialization completed
– – – – (flashes 4 times in blue)
For details, see “Initializing the headset to restore factory settings”.
Related Topic Checking the remaining battery charge Initializing the headset
to restore factory settings
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Help Guide
Wireless Stereo Headset
WH-CH520
Wearing the headset
1 Put the headset on your ears.
1. Check the left and right units of the headset.
There is a tactile dot on the (left) mark side.
A: Tactile dot
2. Extend the slider.
Extend the slider to its full length before putting on the headset.
3. Put on the headset.
Put on the headset with each earpad fitting snugly over each part of your ear.
4. Adjust the length of the slider.
Adjust the slider to a length where the headband touches the top of your head.
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5. Adjust the orientation of the units.
Adjust the orientation of the left and right units so that each earpad fits
snugly over each part of your ear. If you put on the headset without adjusting
the slider, the headset may not be positioned properly on your head, resulting
in discomfort.
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Help Guide
Wireless Stereo Headset
WH-CH520
Charging the headset
The headset contains a built-in lithium-ion rechargeable battery. Use the
supplied USB Type-C cable to charge the headset before use.
1 Connect the headset to an AC outlet. Use the supplied USB Type-C cable and a
commercially available USB AC adaptor.
A: USB AC adaptor The indicator (orange) on the headset lights up. Charging is
completed in about 3 hours * and the indicator turns off automatically.
- Time required for charging the empty battery to its full capacity. The charging time may differ depending on the conditions of use.
After charging is complete, disconnect the USB Type-C cable.
System requirements for battery charge using USB USB AC adaptor
A commercially available USB AC adaptor capable of supplying an output current of 0.5 A (500 mA) or more
Personal computer
Personal computer with a standard USB port We do not guarantee operation on all computers. Operations using a custom-built or homebuilt computer are not guaranteed.
Hint
The headset can be also charged by connecting the headset to a running computer using the supplied USB Type-C cable. If charging starts while the headset is on, the headset will turn off automatically.
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Note
Charging may not be successful with cables other than the supplied USB Type-C
cable. Charging may not be successful depending on the type of USB AC adaptor.
When the headset is connected to an AC outlet or computer, all operations such
as turning on the headset, registering or connecting to Bluetooth devices, and
music playback cannot be performed. The headset cannot be charged when the
computer goes into standby (sleep) or hibernation mode. In this case, change
the computer settings, and start charging once again. If the headset is not
used for a long time, the rechargeable battery usage hours may be reduced.
However, the battery life will improve after charging and discharging several
times. If you store the headset for a long time, charge the battery once every
6 months to avoid over-discharge. If the headset is not used for a long time,
it may take longer to charge the battery. If the headset detects a problem
while charging due to the following causes, the indicator (orange) flashes. In
this case, charge once again within the charging temperature range. If the
problem persists, consult your nearest Sony dealer.
Ambient temperature exceeds the charging temperature range of 5 °C – 35 °C (41
°F – 95 °F). There is a problem with the rechargeable battery. If the headset
is not used for a long time, the indicator (orange) may not immediately light
up when the headset starts charging. Please wait a moment until the indicator
lights up. If the usage hours of the built-in rechargeable battery decrease
significantly, the battery should be replaced. Consult your nearest Sony
dealer. Avoid exposure to extreme temperature changes, direct sunlight,
moisture, sand, dust, and electrical shock. Never leave the headset in a
parked vehicle. When connecting the headset to a computer, use only the
supplied USB Type-C cable, and make sure to connect them directly. Charging
will not be properly completed when the headset is connected through a USB
hub.
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Help Guide
Wireless Stereo Headset
WH-CH520
Available operating time
The available operating times of the headset with the battery fully charged
are as follows:
Bluetooth connection
Music playback time (AAC): Max. 50 hours Music playback time (SBC): Max. 45
hours
About 1.5 hours of music playback is possible after 3 minutes charging. About
5.5 hours of music playback is possible after 10 minutes charging as well.
Communication time: Max. 40 hours Hint
By using the “Sony | Headphones Connect” app, you can check which codec is
used for a connection or switch the DSEETM function.
Note
Usage hours may be different from the time described above depending on the
settings for the headset functions and usage conditions. If you set the
following functions, the available operating time of the battery becomes
shorter than the ones described above.
Equalizer DSEE If you run the above settings at the same time, the available
operating time of the battery becomes even shorter.
Related Topic Supported codecs About the DSEE function What you can do with
the “Sony | Headphones Connect” app
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Help Guide
Wireless Stereo Headset
WH-CH520
Checking the remaining battery charge
You can check the remaining battery charge of the rechargeable battery by the
following way.
When you turn on the headset, the voice guidance indicating the remaining
battery charge can be heard. “Battery about XX %” (The “XX” value indicates
the approximate remaining charge.) “Battery fully charged” The remaining
battery charge indicated by the voice guidance may differ from the actual
remaining charge in some cases. Use it as a rough estimate. The indicator
(orange) also flashes for about 15 seconds if the remaining battery charge is
20% or lower when the headset is turned on.
When the remaining charge becomes low When you are using an iPhone or iPod
touch
When the headset is connected to an iPhone or iPod touch over an HFP (Hands-
free Profile) Bluetooth connection, it will show an icon that indicates the
remaining battery charge of the headset on the screen of the iPhone or iPod
touch. The display position is an example.
A: Remaining battery charge of the headset B: 100% – 70% C: 70% – 50% D: 50% –
20% E: 20% or lower (requires charging)
The remaining battery charge of the headset is also displayed on the widget of
an iPhone or iPod touch running iOS 11 or later. For more details, refer to
the operating instructions supplied with the iPhone or iPod touch. The
remaining charge which is displayed may differ from the actual remaining
charge in some cases. Use it as a rough estimate.
When you are using an AndroidTM smartphone (OS 8.1 or later)
When the headset is connected to an Android smartphone via HFP Bluetooth
connection, select [Settings] – [Device connection] – [Bluetooth] to display
the remaining battery charge of the headset as “100%”, “70%”, “50%” or “20%”
in the connected Bluetooth device column. The operation above is an example.
For details, refer to the operating instructions of the Android smartphone.
The remaining charge which is displayed may differ from the actual remaining
charge in some cases. Use it as a rough estimate.
Hint
You can also check the remaining battery charge of the headset with the “Sony
| Headphones Connect” app. Android smartphones and iPhone/iPod touch both
support this app.
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Note
If the headset and smartphone are not connected with HFP, the remaining
battery charge will not be correctly displayed.
If you connect the headset to an iPhone/iPod touch or Android smartphone with
“Media audio” (A2DP) only in a multipoint connection, the remaining battery
charge will not be displayed correctly.
The remaining battery charge may not be properly displayed immediately after a
software update or if the headset has not been used for a long time. In this
case, repeatedly charge and discharge the battery multiple times to properly
display the remaining battery charge.
Related Topic About the indicator
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Help Guide
Wireless Stereo Headset
WH-CH520
Turning on the headset
1 Press and hold the (power) button for about 2 seconds or more until the
indicator (blue) flashes.
Related Topic Turning off the headset
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Help Guide
Wireless Stereo Headset
WH-CH520
Turning off the headset
1 Press and hold the (power) button for about 2 seconds or more until the
indicator (blue) turns off.
Hint
You can also turn off the headset with the “Sony | Headphones Connect” app.
Related Topic Turning on the headset
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Help Guide
Wireless Stereo Headset
WH-CH520
How to make a wireless connection to Bluetooth devices
You can enjoy music and hands-free calling with the headset wirelessly by
using your Bluetooth device’s Bluetooth function.
Pairing
To use the Bluetooth function, both of the connecting devices must be
registered in advance. The operation to register a device is called “pairing”.
Pair the headset and the device manually.
Connecting to a paired device
Once a device is paired, it is not necessary to pair it again. Connect to
devices already paired with the headset using the methods necessary for each
device.
Related Topic Pairing and connecting with an Android smartphone Pairing and
connecting with an iPhone Pairing and connecting with a computer (Windows® 11)
Pairing and connecting with a computer (Windows 10) Pairing and connecting
with a computer (Mac) Pairing and connecting with a Bluetooth device
Connecting to a paired Android smartphone Connecting to a paired iPhone
Connecting to a paired computer (Windows 11) Connecting to a paired computer
(Windows 10) Connecting to a paired computer (Mac) Connecting to a paired
Bluetooth device
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Help Guide
Wireless Stereo Headset
WH-CH520
Connecting with the “Sony | Headphones Connect” app
Launch the “Sony | Headphones Connect” app on your Android smartphone/iPhone
to connect the headset to a smartphone or iPhone. For more details, refer to
the “Sony | Headphones Connect” app help guide.
https://rd1.sony.net/help/mdr/hpc/h_zz/
Note
The connection with some smartphones and iPhone devices may become unstable
when connecting using the “Sony | Headphones Connect” app. In that case,
follow the procedures in “Connecting to a paired Android smartphone”, or
“Connecting to a paired iPhone ” to connect to the headset.
Related Topic Pairing and connecting with an Android smartphone Pairing and
connecting with an iPhone Pairing and connecting with a computer (Windows® 11)
Pairing and connecting with a computer (Windows 10) Pairing and connecting
with a computer (Mac) Connecting to a paired Android smartphone Connecting to
a paired iPhone What you can do with the “Sony | Headphones Connect” app
Installing the “Sony | Headphones Connect” app
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Help Guide
Wireless Stereo Headset
WH-CH520
Pairing and connecting with an Android smartphone
The operation to register the device that you wish to connect to is called
“pairing”. First, pair a device to use it with the headset for the first time.
Before starting the operation, make sure of the following:
The Android smartphone is placed within 1 m (3.2 ft) of the headset. The
headset is charged sufficiently. The operating instructions of the Android
smartphone is in hand. 1 Enter pairing mode on this headset.
Turn on the headset when you pair the headset with a device for the first time
after you bought it or after you initialized the headset (the headset has no
pairing information). The headset enters pairing mode automatically. In this
case, proceed to step . When you pair a second or subsequent device (the
headset already has pairing information for other devices), press and hold the
(Bluetooth) button for about 5 seconds or more to enter pairing mode manually.
The indicator (blue) repeatedly flashes twice in a row. You will hear the
voice guidance say, “Pairing”.
0:00
2 Unlock the screen of the Android smartphone if it is locked. 3 Find the
headset on the Android smartphone.
1. Select [Settings] – [Device connection] – [Bluetooth].
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2. Touch the switch to turn on the Bluetooth function.
4 Touch [WH-CH520].
If Passkey* input is required, input “0000”. The headset and smartphone are
paired and connected with each other. You will hear a notification sound
indicating that the connection is established. If they are not connected, see
“Connecting to a paired Android smartphone”. If [WH-CH520] does not appear on
your Android smartphone screen, try again from the beginning of step .
- A Passkey may be called “Passcode”, “PIN code”, “PIN number”, or “Password”.
Hint
The operation above is an example. For more details, refer to the operating instructions supplied with the Android smartphone. To delete all Bluetooth pairing information, see “Initializing the headset to restore factory settings”.
Note
If pairing is not established within 5 minutes, pairing mode is canceled, and the headset turns off. In this case, start the operation again from step . Once Bluetooth devices are paired, there is no need to pair them again, except in the following cases:
Pairing information has been deleted after repair, etc. When a 9th device is paired. The headset can be paired with up to 8 devices. If a new device is paired after 8 devices are already paired, the registration information of the paired device with the oldest connection date is overwritten with the information for the new device. When the pairing information for the headset has been deleted from the Bluetooth device. When the headset is initialized. All of the pairing information is deleted. In this case, delete the pairing information for the headset from the connected device and then pair them again. The headset can be paired with multiple devices, but can only play music from 1 paired device at a time.
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Related Topic How to make a wireless connection to Bluetooth devices
Connecting to a paired Android smartphone Listening to music from a device via
Bluetooth connection Disconnecting Bluetooth connection (after use)
Initializing the headset to restore factory settings
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Help Guide
Wireless Stereo Headset
WH-CH520
Connecting to a paired Android smartphone
1 Unlock the screen of the Android smartphone if it is locked. 2 Turn on the
headset.
Press and hold the (power) button for about 2 seconds or more.
You will hear a notification sound indicating that the headset is turned on.
The indicator (blue) continues to flash even after you release your finger
from the button.
If the headset has automatically connected to the last connected device, you
will hear a notification sound indicating that the connection is established.
Check the connection status on the Android smartphone. If it is not connected,
proceed to step . 3 Display the devices paired with the Android smartphone.
1. Select [Settings] – [Device connection] – [Bluetooth].
2. Touch the switch to turn on the Bluetooth function.
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4 Touch [WH-CH520].
You will hear a notification sound indicating that the connection is
established. Hint
The operation above is an example. For more details, refer to the operating
instructions supplied with the Android smartphone.
Note
If the last-connected Bluetooth device is placed near the headset, the headset
may connect automatically to the device by simply turning on the headset. If
this is the case, deactivate the Bluetooth function on the last-connected
device or turn off the power. If you cannot connect your smartphone to the
headset, delete the headset pairing information on your smartphone and perform
the pairing again. As for the operations on your smartphone, refer to the
operating instructions supplied with the smartphone.
Related Topic How to make a wireless connection to Bluetooth devices Pairing
and connecting with an Android smartphone Listening to music from a device via
Bluetooth connection Disconnecting Bluetooth connection (after use)
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Help Guide
Wireless Stereo Headset
WH-CH520
Pairing and connecting with an iPhone
The operation to register the device that you wish to connect to is called
“pairing”. First, pair a device to use it with the headset for the first time.
Before starting the operation, make sure of the following:
The iPhone is placed within 1 m (3.2 ft) of the headset. The headset is
charged sufficiently. The operating instructions of the iPhone is in hand. 1
Enter pairing mode on this headset.
Turn on the headset when you pair the headset with a device for the first time
after you bought it or after you initialized the headset (the headset has no
pairing information). The headset enters pairing mode automatically. In this
case, proceed to step . When you pair a second or subsequent device (the
headset already has pairing information for other devices), press and hold the
(Bluetooth) button for about 5 seconds or more to enter pairing mode manually.
The indicator (blue) repeatedly flashes twice in a row. You will hear the
voice guidance say, “Pairing”.
0:00
2 Unlock the screen of the iPhone if it is locked. 3 Find the headset on the
iPhone.
1. Select [Settings]. 2. Touch [Bluetooth].
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3. Touch the switch to turn on the Bluetooth function.
4 Touch [WH-CH520].
If Passkey* input is required, input “0000”. The headset and iPhone are paired
and connected with each other. You will hear a notification sound indicating
that the connection is established. If they are not connected, see “Connecting
to a paired iPhone “. If [WH-CH520] does not appear on your iPhone screen, try
again from the beginning of step .
- A Passkey may be called “Passcode”, “PIN code”, “PIN number”, or “Password”.
Hint
The operation above is an example. For more details, refer to the operating instructions supplied with the iPhone. To delete all Bluetooth pairing information, see “Initializing the headset to restore factory settings”.
Note
If pairing is not established within 5 minutes, pairing mode is canceled, and the headset turns off. In this case, start the operation again from step . Once Bluetooth devices are paired, there is no need to pair them again, except in the following cases:
Pairing information has been deleted after repair, etc. When a 9th device is paired. The headset can be paired with up to 8 devices. If a new device is paired after 8 devices are already paired, the registration information of the paired device with the oldest connection date is overwritten with the information for the new device. When the pairing information for the headset has been deleted from the Bluetooth device. When the headset is initialized. All of the pairing information is deleted. In this case, delete the pairing information for the headset from the connected device and then pair them again. The headset can be paired with multiple devices, but can only play music from 1 paired device at a time.
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Related Topic How to make a wireless connection to Bluetooth devices
Connecting to a paired iPhone Listening to music from a device via Bluetooth
connection Disconnecting Bluetooth connection (after use) Initializing the
headset to restore factory settings
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Help Guide
Wireless Stereo Headset
WH-CH520
Connecting to a paired iPhone
1 Unlock the screen of the iPhone if it is locked. 2 Turn on the headset.
Press and hold the (power) button for about 2 seconds or more.
You will hear a notification sound indicating that the headset is turned on.
The indicator (blue) continues to flash even after you release your finger
from the button.
If the headset has automatically connected to the last connected device, you
will hear a notification sound indicating that the connection is established.
Check the connection status on the iPhone. If it is not connected, proceed to
step . 3 Display the devices paired with the iPhone.
1. Select [Settings]. 2. Touch [Bluetooth].
3. Touch the switch to turn on the Bluetooth function.
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4 Touch [WH-CH520].
You will hear a notification sound indicating that the connection is
established.
Hint
The operation above is an example. For more details, refer to the operating
instructions supplied with the iPhone.
Note
If the last-connected Bluetooth device is placed near the headset, the headset
may connect automatically to the device by simply turning on the headset. If
this is the case, deactivate the Bluetooth function on the last-connected
device or turn off the power. If you cannot connect your iPhone to the
headset, delete the headset pairing information on your iPhone and perform the
pairing again. As for the operations on your iPhone, refer to the operating
instructions supplied with the iPhone.
Related Topic How to make a wireless connection to Bluetooth devices Pairing
and connecting with an iPhone Listening to music from a device via Bluetooth
connection Disconnecting Bluetooth connection (after use)
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Help Guide
Wireless Stereo Headset
WH-CH520
Pairing and connecting with a computer (Windows® 11)
The operation to register the device that you wish to connect to is called
“pairing”. First, pair a device to use it with the headset for the first time.
Before starting the operation, make sure of the following:
Your computer has a Bluetooth function that supports music playback
connections (A2DP). When you use a video calling application on your computer,
your computer has a Bluetooth function that supports calling connections
(HFP/HSP). The computer is placed within 1 m (3.2 ft) of the headset. The
headset is charged sufficiently. The operating instructions of the computer is
in hand. Depending on the computer you are using, the built-in Bluetooth
adaptor may need to be turned on. If you do not know how to turn on the
Bluetooth adaptor or are unsure if your computer has a built-in Bluetooth
adaptor, refer to the operating instructions supplied with the computer. The
Swift Pair function makes pairing easier. To use the Swift Pair function,
click the [Start] button – [Settings] [Bluetooth & devices] – [Show
notifications to connect using Swift Pair] switch to turn on the Swift Pair
function.
1 Enter pairing mode on this headset. Turn on the headset when you pair the
headset with a device for the first time after you bought it or after you
initialized the headset (the headset has no pairing information). The headset
enters pairing mode automatically. In this case, proceed to step . When you
pair a second or subsequent device (the headset already has pairing
information for other devices), press and hold the (Bluetooth) button for
about 5 seconds or more to enter pairing mode manually.
The indicator (blue) repeatedly flashes twice in a row. You will hear the
voice guidance say, “Pairing”.
34
0:00 2 Wake the computer up if the computer is in standby (sleep) or
hibernation mode. 3 Pair the headset using the computer.
To connect using the Swift Pair function 1. Select [Connect] from the pop-up
menu displayed on your computer screen.
To connect without using the Swift Pair function 1. Click the [Start] button,
then [Settings]. 2. Click [Bluetooth & devices].
3. Click the [Bluetooth] switch to turn on the Bluetooth function, then click
[Add device].
35
4. Click [Bluetooth].
5. Click [WH-CH520].
If Passkey* input is required, input “0000”. The headset and computer are
paired and connected with each other. You will hear a notification sound
indicating that the connection is established. If they are not connected, see
“Connecting to a paired computer (Windows 11)”. If [WH-CH520] does not appear
on your computer screen, try again from “To connect without using the Swift
Pair function” of step .
- A Passkey may be called “Passcode”, “PIN code”, “PIN number”, or “Password”. 36
Hint
The operation above is an example. For more details, refer to the operating
instructions supplied with the computer. To delete all Bluetooth pairing
information, see “Initializing the headset to restore factory settings”.
Note
If pairing is not established within 5 minutes, pairing mode is canceled, and
the headset turns off. In this case, start the operation again from step .
Once Bluetooth devices are paired, there is no need to pair them again, except
in the following cases:
Pairing information has been deleted after repair, etc. When a 9th device is
paired. The headset can be paired with up to 8 devices. If a new device is
paired after 8 devices are already paired, the registration information of the
paired device with the oldest connection date is overwritten with the
information for the new device. When the pairing information for the headset
has been deleted from the Bluetooth device. When the headset is initialized.
All of the pairing information is deleted. In this case, delete the pairing
information for the headset from the connected device and then pair them
again. The headset can be paired with multiple devices, but can only play
music from 1 paired device at a time.
Related Topic How to make a wireless connection to Bluetooth devices
Connecting to a paired computer (Windows 11) Listening to music from a device
via Bluetooth connection Making a video call on your computer Disconnecting
Bluetooth connection (after use) Initializing the headset to restore factory
settings
5-044-178-11(1) Copyright 2023 Sony Corporation
37
Help Guide
Wireless Stereo Headset
WH-CH520
Pairing and connecting with a computer (Windows 10)
The operation to register the device that you wish to connect to is called
“pairing”. First, pair a device to use it with the headset for the first time.
Before starting the operation, make sure of the following:
Your computer has a Bluetooth function that supports music playback
connections (A2DP). When you use a video calling application on your computer,
your computer has a Bluetooth function that supports calling connections
(HFP/HSP). The computer is placed within 1 m (3.2 ft) of the headset. The
headset is charged sufficiently. The operating instructions of the computer is
in hand. Depending on the computer you are using, the built-in Bluetooth
adaptor may need to be turned on. If you do not know how to turn on the
Bluetooth adaptor or are unsure if your computer has a built-in Bluetooth
adaptor, refer to the operating instructions supplied with the computer. If
your OS version is Windows 10 version 1803 or later, the Swift Pair function
will make pairing easier. To use the Swift Pair function, click the [Start]
button – [Settings] – [Devices] – [Bluetooth & other devices], and check [Show
notifications to connect using Swift Pair].
1 Enter pairing mode on this headset. Turn on the headset when you pair the
headset with a device for the first time after you bought it or after you
initialized the headset (the headset has no pairing information). The headset
enters pairing mode automatically. In this case, proceed to step . When you
pair a second or subsequent device (the headset already has pairing
information for other devices), press and hold the (Bluetooth) button for
about 5 seconds or more to enter pairing mode manually.
The indicator (blue) repeatedly flashes twice in a row. You will hear the
voice guidance say, “Pairing”.
38
0:00 2 Wake the computer up if the computer is in standby (sleep) or
hibernation mode. 3 Pair the headset using the computer.
To connect using the Swift Pair function 1. Select [Connect] from the pop-up
menu displayed on your computer screen.
To connect without using the Swift Pair function 1. Click the [Start] button,
then [Settings]. 2. Click [Devices].
39
3. Click the [Bluetooth & other devices] tab, click the [Bluetooth] switch to
turn on the Bluetooth function, then click
[Add Bluetooth or other device].
4. Click [Bluetooth].
5. Click [WH-CH520].
40
If Passkey* input is required, input “0000”. The headset and computer are paired and connected with each other. You will hear a notification sound indicating that the connection is established. If they are not connected, see “Connecting to a paired computer (Windows 10)”. If [WH-CH520] does not appear on your computer screen, try again from “To connect without using the Swift Pair function” of step .
- A Passkey may be called “Passcode”, “PIN code”, “PIN number”, or “Password”.
Hint
The operation above is an example. For more details, refer to the operating instructions supplied with the computer. To delete all Bluetooth pairing information, see “Initializing the headset to restore factory settings”.
Note
If pairing is not established within 5 minutes, pairing mode is canceled, and the headset turns off. In this case, start the operation again from step . Once Bluetooth devices are paired, there is no need to pair them again, except in the following cases:
Pairing information has been deleted after repair, etc. When a 9th device is paired. The headset can be paired with up to 8 devices. If a new device is paired after 8 devices are already paired, the registration information of the paired device with the oldest connection date is overwritten with the information for the new device. When the pairing information for the headset has been deleted from the Bluetooth device. When the headset is initialized. All of the pairing information is deleted. In this case, delete the pairing information for the headset from the connected device and then pair them again. The headset can be paired with multiple devices, but can only play music from 1 paired device at a time.
Related Topic How to make a wireless connection to Bluetooth devices Connecting to a paired computer (Windows 10)
41
Listening to music from a device via Bluetooth connection Making a video call
on your computer Disconnecting Bluetooth connection (after use) Initializing
the headset to restore factory settings
5-044-178-11(1) Copyright 2023 Sony Corporation
42
Help Guide
Wireless Stereo Headset
WH-CH520
Pairing and connecting with a computer (Mac)
The operation to register the device that you wish to connect to is called
“pairing”. First, pair a device to use it with the headset for the first time.
Compatible OS
macOS (version 11 or later) Before starting the operation, make sure of the
following:
Your computer has a Bluetooth function that supports music playback
connections (A2DP). When you use a video calling application on your computer,
your computer has a Bluetooth function that supports calling connections
(HFP/HSP). The computer is placed within 1 m (3.2 ft) of the headset. The
headset is charged sufficiently. The operating instructions of the computer is
in hand. Depending on the computer you are using, the built-in Bluetooth
adaptor may need to be turned on. If you do not know how to turn on the
Bluetooth adaptor or are unsure if your computer has a built-in Bluetooth
adaptor, refer to the operating instructions supplied with the computer. Set
the computer speaker to the ON mode. If the computer speaker is set to the
“OFF” mode, no sound is heard from the headset. Computer speaker in the ON
mode
1 Enter pairing mode on this headset. Turn on the headset when you pair the
headset with a device for the first time after you bought it or after you
initialized the headset (the headset has no pairing information). The headset
enters pairing mode automatically. In this case, proceed to step . When you
pair a second or subsequent device (the headset already has pairing
information for other devices), press and hold the (Bluetooth) button for
about 5 seconds or more to enter pairing mode manually.
The indicator (blue) repeatedly flashes twice in a row. You will hear the
voice guidance say, “Pairing”.
43
0:00 2 Wake the computer up if the computer is in standby (sleep) or
hibernation mode. 3 Pair the headset using the computer.
1. Select [ (System Preferences)] – [Bluetooth] from the Dock at the bottom
of the screen.
2. Select [WH-CH520] of the [Bluetooth] screen and click [Connect].
If Passkey* input is required, input “0000”. The headset and computer are
paired and connected with each other. You will hear a notification sound
indicating that the connection is established. If they are not connected, see
“Connecting to a paired computer (Mac)”. If [WH-CH520] does not appear on your
computer screen, try again from the beginning of step .
- A Passkey may be called “Passcode”, “PIN code”, “PIN number”, or “Password”. 44
Hint
The operation above is an example. For more details, refer to the operating
instructions supplied with the computer. To delete all Bluetooth pairing
information, see “Initializing the headset to restore factory settings”.
Note
If pairing is not established within 5 minutes, pairing mode is canceled, and
the headset turns off. In this case, start the operation again from step .
Once Bluetooth devices are paired, there is no need to pair them again, except
in the following cases:
Pairing information has been deleted after repair, etc. When a 9th device is
paired. The headset can be paired with up to 8 devices. If a new device is
paired after 8 devices are already paired, the registration information of the
paired device with the oldest connection date is overwritten with the
information for the new device. When the pairing information for the headset
has been deleted from the Bluetooth device. When the headset is initialized.
All of the pairing information is deleted. In this case, delete the pairing
information for the headset from the connected device and then pair them
again. The headset can be paired with multiple devices, but can only play
music from 1 paired device at a time.
Related Topic How to make a wireless connection to Bluetooth devices
Connecting to a paired computer (Mac) Listening to music from a device via
Bluetooth connection Making a video call on your computer Disconnecting
Bluetooth connection (after use) Initializing the headset to restore factory
settings
5-044-178-11(1) Copyright 2023 Sony Corporation
45
Help Guide
Wireless Stereo Headset
WH-CH520
Connecting to a paired computer (Windows 11)
Before starting the operation, make sure of the following: Depending on the
computer you are using, the built-in Bluetooth adaptor may need to be turned
on. If you do not know how to turn on the Bluetooth adaptor or are unsure if
your computer has a built-in Bluetooth adaptor, refer to the operating
instructions supplied with the computer.
1 Wake the computer up if the computer is in standby (sleep) or hibernation
mode. 2 Turn on the headset.
Press and hold the (power) button for about 2 seconds or more.
You will hear a notification sound indicating that the headset is turned on.
The indicator (blue) continues to flash even after you release your finger
from the button.
If the headset has automatically connected to the last connected device, you
will hear a notification sound indicating that the connection is established.
Check the connection status on the computer. If it is not connected, proceed
to step . 3 Select the headset using the computer.
1. Right-click the speaker icon on the toolbar, then select [Sound settings].
2. On the [Sound] screen, select [WH-CH520] for [Output] and [Input].
46
If [WH-CH520] is not displayed for [Output] and [Input], proceed to step 3.
3. Click [More sound settings].
4. On the [Playback] tab on the [Sound] screen, select [WH-CH520], right-
click it, and select [Connect] from the
displayed menu.
47
You will hear a notification sound indicating that the connection is
established.
5. On the [Recording] tab, select [WH-CH520], right-click it, and select
[Connect] from the displayed menu.
Hint
The operation above is an example. For more details, refer to the operating
instructions supplied with the computer.
Note
If the music playback sound quality is poor, check that the A2DP function
which supports music playback connections is enabled in the computer settings.
For more details, refer to the operating instructions supplied with the
computer. If the last-connected Bluetooth device is placed near the headset,
the headset may connect automatically to the device by simply turning on the
headset. If this is the case, deactivate the Bluetooth function on the last-
connected device or turn off the power. If you cannot connect your computer to
the headset, delete the headset pairing information on your computer and
perform the pairing again. As for the operations on your computer, refer to
the operating instructions supplied with the computer.
48
Related Topic How to make a wireless connection to Bluetooth devices Pairing
and connecting with a computer (Windows® 11) Listening to music from a device
via Bluetooth connection Disconnecting Bluetooth connection (after use)
5-044-178-11(1) Copyright 2023 Sony Corporation
49
Help Guide
Wireless Stereo Headset
WH-CH520
Connecting to a paired computer (Windows 10)
Before starting the operation, make sure of the following: Depending on the
computer you are using, the built-in Bluetooth adaptor may need to be turned
on. If you do not know how to turn on the Bluetooth adaptor or are unsure if
your computer has a built-in Bluetooth adaptor, refer to the operating
instructions supplied with the computer.
1 Wake the computer up if the computer is in standby (sleep) or hibernation
mode. 2 Turn on the headset.
Press and hold the (power) button for about 2 seconds or more.
You will hear a notification sound indicating that the headset is turned on.
The indicator (blue) continues to flash even after you release your finger
from the button.
If the headset has automatically connected to the last connected device, you
will hear a notification sound indicating that the connection is established.
Check the connection status on the computer. If it is not connected, proceed
to step . 3 Select the headset using the computer.
1. Right-click the speaker icon on the toolbar, then select [Open Sound
settings].
50
2. From the [Choose your output device] drop-down menu, select [Headphones
(WH-CH520 Stereo)].
If [Headphones (WH-CH520 Stereo)] is not displayed on the drop-down menu,
proceed to step 3.
3. Click [Sound Control Panel], right-click on the [Playback] tab on the
[Sound] screen, and check the [Show
Disconnected Devices] checkbox.
4. Select [Connect] from the displayed menu.
51
You will hear a notification sound indicating that the connection is
established.
Hint
The operation above is an example. For more details, refer to the operating
instructions supplied with the computer. 52
Note
If the music playback sound quality is poor, check that the A2DP function
which supports music playback connections is enabled in the computer settings.
For more details, refer to the operating instructions supplied with the
computer. If the last-connected Bluetooth device is placed near the headset,
the headset may connect automatically to the device by simply turning on the
headset. If this is the case, deactivate the Bluetooth function on the last-
connected device or turn off the power. If you cannot connect your computer to
the headset, delete the headset pairing information on your computer and
perform the pairing again. As for the operations on your computer, refer to
the operating instructions supplied with the computer.
Related Topic How to make a wireless connection to Bluetooth devices Pairing
and connecting with a computer (Windows 10) Listening to music from a device
via Bluetooth connection Disconnecting Bluetooth connection (after use)
5-044-178-11(1) Copyright 2023 Sony Corporation
53
Help Guide
Wireless Stereo Headset
WH-CH520
Connecting to a paired computer (Mac)
Compatible OS
macOS (version 11 or later) Before starting the operation, make sure of the
following:
Depending on the computer you are using, the built-in Bluetooth adaptor may
need to be turned on. If you do not know how to turn on the Bluetooth adaptor
or are unsure if your computer has a built-in Bluetooth adaptor, refer to the
operating instructions supplied with the computer. Set the computer speaker to
the ON mode. If the computer speaker is set to the “OFF” mode, no sound is
heard from the headset. Computer speaker in the ON mode
1 Wake the computer up if the computer is in standby (sleep) or hibernation
mode. 2 Turn on the headset.
Press and hold the (power) button for about 2 seconds or more.
You will hear a notification sound indicating that the headset is turned on.
The indicator (blue) continues to flash even after you release your finger
from the button.
If the headset has automatically connected to the last connected device, you
will hear a notification sound indicating that the connection is established.
Check the connection status on the computer. If it is not connected, proceed
to step . 3 Select the headset using the computer.
1. Select [ (System Preferences)] – [Bluetooth] from the Dock at the bottom
of the screen.
54
2. Click [WH-CH520] on the [Bluetooth] screen while pressing the computer
Control button and select [Connect] from the pop-up menu.
The connection is established. You will hear a notification sound indicating
that the connection is established.
Hint
The operation above is an example. For more details, refer to the operating
instructions supplied with the computer.
Note
If the music playback sound quality is poor, check that the A2DP function
which supports music playback connections is enabled in the computer settings.
For more details, refer to the operating instructions supplied with the
computer. If the last-connected Bluetooth device is placed near the headset,
the headset may connect automatically to the device by simply turning on the
headset. If this is the case, deactivate the Bluetooth function on the last-
connected device or turn off the power. If you cannot connect your computer to
the headset, delete the headset pairing information on your computer and
perform the pairing again. As for the operations on your computer, refer to
the operating instructions supplied with the computer.
Related Topic How to make a wireless connection to Bluetooth devices Pairing
and connecting with a computer (Mac) Listening to music from a device via
Bluetooth connection Disconnecting Bluetooth connection (after use)
5-044-178-11(1) Copyright 2023 Sony Corporation 55
Help Guide
Wireless Stereo Headset
WH-CH520
Pairing and connecting with a Bluetooth device
The operation to register the device that you wish to connect to is called
“pairing”. First, pair a device to use it with the headset for the first time.
Before starting the operation, make sure of the following:
The Bluetooth device is placed within 1 m (3.2 ft) of the headset. The headset
is charged sufficiently. The operating instructions of the Bluetooth device is
in hand. 1 Enter pairing mode on this headset.
Turn on the headset when you pair the headset with a device for the first time
after you bought it or after you initialized the headset (the headset has no
pairing information). The headset enters pairing mode automatically. In this
case, proceed to step . When you pair a second or subsequent device (the
headset already has pairing information for other devices), press and hold the
(Bluetooth) button for about 5 seconds or more to enter pairing mode manually.
The indicator (blue) repeatedly flashes twice in a row. You will hear the
voice guidance say, “Pairing”.
0:00
2 Perform the pairing procedure on the Bluetooth device to search for this
headset. [WH-CH520] will be displayed on the list of detected devices on the
screen of the Bluetooth device. If it is not displayed, repeat from step .
3 Select [WH-CH520] displayed on the screen of the Bluetooth device for
pairing. If Passkey* input is required, input “0000”.
- A Passkey may be called “Passcode”, “PIN code”, “PIN number”, or “Password”. 56
4 Make the Bluetooth connection from the Bluetooth device. Some devices
automatically connect with the headset when pairing is complete. You will hear
a notification sound indicating that the connection is established. If they
are not connected, see “Connecting to a paired Bluetooth device”.
Hint
The operation above is an example. For more details, refer to the operating
instructions supplied with the Bluetooth device. To delete all Bluetooth
pairing information, see “Initializing the headset to restore factory
settings”.
Note
If pairing is not established within 5 minutes, pairing mode is canceled, and
the headset turns off. In this case, start the operation again from step .
Once Bluetooth devices are paired, there is no need to pair them again, except
in the following cases:
Pairing information has been deleted after repair, etc. When a 9th device is
paired. The headset can be paired with up to 8 devices. If a new device is
paired after 8 devices are already paired, the registration information of the
paired device with the oldest connection date is overwritten with the
information for the new device. When the pairing information for the headset
has been deleted from the Bluetooth device. When the headset is initialized.
All of the pairing information is deleted. In this case, delete the pairing
information for the headset from the connected device and then pair them
again. The headset can be paired with multiple devices, but can only play
music from 1 paired device at a time.
Related Topic How to make a wireless connection to Bluetooth devices
Connecting to a paired Bluetooth device Listening to music from a device via
Bluetooth connection Disconnecting Bluetooth connection (after use)
Initializing the headset to restore factory settings
5-044-178-11(1) Copyright 2023 Sony Corporation
57
Help Guide
Wireless Stereo Headset
WH-CH520
Connecting to a paired Bluetooth device
1 Turn on the headset. Press and hold the (power) button for about 2 seconds
or more.
You will hear a notification sound indicating that the headset is turned on.
The indicator (blue) continues to flash even after you release your finger
from the button.
If the headset has automatically connected to the last connected device, you
will hear a notification sound indicating that the connection is established.
Check the connection status on the Bluetooth device. If it is not connected,
proceed to step . 2 Make the Bluetooth connection from the Bluetooth device.
As for the operations on your Bluetooth device, refer to the operating
instructions supplied with the Bluetooth device. When connected, you will hear
a notification sound indicating that the connection is established.
Hint
The operation above is an example. For more details, refer to the operating
instructions supplied with the Bluetooth device.
Note
If the last-connected Bluetooth device is placed near the headset, the headset
may connect automatically to the device by simply turning on the headset. If
this is the case, deactivate the Bluetooth function on the last-connected
device or turn off the power. If you cannot connect your Bluetooth device to
the headset, delete the headset pairing information on your Bluetooth device
and perform the pairing again. As for the operations on your Bluetooth device,
refer to the operating instructions supplied with the Bluetooth device.
Related Topic
58
How to make a wireless connection to Bluetooth devices Pairing and connecting
with a Bluetooth device Listening to music from a device via Bluetooth
connection Disconnecting Bluetooth connection (after use)
5-044-178-11(1) Copyright 2023 Sony Corporation
59
Help Guide
Wireless Stereo Headset
WH-CH520
Connecting the headset to 2 devices simultaneously (multipoint connection)
When [Connect to 2 devices simultaneously] is turned on with the “Sony |
Headphones Connect” app, the headset can connect to 2 devices via Bluetooth
connections simultaneously, allowing you to do the following.
Waiting for an incoming call for 2 smartphones You can listen to music played
on one smartphone with the headset, wait for an incoming call for both
smartphones, and talk if an incoming call arrives.
Switching music playback between 2 devices You can switch the music playback
from one device to the other without performing a Bluetooth reconnection.
Connecting the headset to 2 devices via Bluetooth connections simultaneously
Before connecting, make sure that the “Sony | Headphones Connect” app is
installed on one of the 2 devices. 1 Pair the headset with 2 devices,
respectively. 2 Operate the device on which the “Sony | Headphones Connect”
app is installed to establish a Bluetooth connection with the headset. 3 Turn
on [Connect to 2 devices simultaneously] with the “Sony | Headphones Connect”
app. 4 Operate the second device to establish a Bluetooth connection with the
headset.
60
When Bluetooth connections are established between 2 devices and the headset,
another paired device can be connected via Bluetooth connection. If you try to
make a Bluetooth connection with the headset by operating the third device,
the Bluetooth connection with the last device that played music will be
maintained, and the Bluetooth connection with the other device will be
disconnected. Then a Bluetooth connection between the third device and the
headset is established.
Music playback when the headset is connected to 2 devices via Bluetooth
connections
When playing music by operating the headset, the music is played from the
device that played last. If you want to play music from the other device, stop
playback on the device that is playing the music, and start playback by
operating the other device. Even if you start playback by operating the second
device while playing music on the first device, the music from the first
device will continue to be heard via the headset. In this state, if you stop
playback on the first device, you can listen to music from the second device
via the headset.
Talking on the phone when the headset is connected to 2 devices via Bluetooth
connections
When the headset is connected to 2 smartphones, etc. via Bluetooth connections
simultaneously, both devices will be in standby mode. When an incoming call
arrives to the first device, a ring tone is heard via the headset. When an
incoming call arrives to the second device while talking on the headset, a
ring tone is heard via the second device. If you finish the call on the first
device, the ring tone from the second device will be heard via the headset.
Related Topic What you can do with the “Sony | Headphones Connect” app How to
make a wireless connection to Bluetooth devices
5-044-178-11(1) Copyright 2023 Sony Corporation
61
Help Guide
Wireless Stereo Headset
WH-CH520
Listening to music from a device via Bluetooth connection
If your Bluetooth device supports the following profiles, you can enjoy
listening to music and control the device from your headset via Bluetooth
connection.
A2DP (Advanced Audio Distribution Profile) You can enjoy high-quality music
wirelessly. AVRCP (Audio Video Remote Control Profile) You can adjust the
volume, etc. The operation may vary depending on the Bluetooth device. Refer
to the operating instructions supplied with the Bluetooth device. 1 Connect
the headset to a Bluetooth device. 2 Put the headset on your ears.
1. Check the left and right units of the headset.
There is a tactile dot on the (left) mark side.
A: Tactile dot
2. Extend the slider.
Extend the slider to its full length before putting on the headset.
3. Put on the headset.
Put on the headset with each earpad fitting snugly over each part of your ear.
62
4. Adjust the length of the slider.
Adjust the slider to a length where the headband touches the top of your head.
5. Adjust the orientation of the units.
Adjust the orientation of the left and right units so that each earpad fits
snugly over each part of your ear.
If you put on the headset without adjusting the slider, the headset may not be
positioned properly on your head, resulting in discomfort. 3 Operate the
Bluetooth device to start playback and adjust the volume to a moderate level.
4 Adjust the volume by pressing the + (volume +)/ (volume ) buttons of the
headset. There is a tactile dot on the + button.
B: Tactile dot When the volume reaches the maximum or minimum, an alarm
sounds. Hint
63
The headset supports SCMS-T content protection. You can enjoy music and other
audio on the headset from a device such as a mobile phone or portable TV that
supports SCMS-T content protection. Depending on the Bluetooth device, it may
be necessary to adjust the volume or set the audio output setting on the
device. The headset volume during a call and during music playback can be
independently adjusted. Changing the call volume does not change the volume of
music playback and vice versa.
Note
If the communication condition is poor, the Bluetooth device may react
incorrectly to the operation on the headset.
Related Topic How to make a wireless connection to Bluetooth devices
Controlling the audio device (Bluetooth connection)
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64
Help Guide
Wireless Stereo Headset
WH-CH520
Controlling the audio device (Bluetooth connection)
If your Bluetooth device supports the device operating function (compatible
profile: AVRCP), the following operations are available. The available
functions may vary depending on the Bluetooth device, so refer to the
operating instructions supplied with the device.
Each button has the following function:
(play)
Play: Press once while paused. Pause: Press once during playback.
(volume )/ + (volume +)/
(previous) (next)
Adjust the volume. Press and hold until you hear a notification sound to skip to the beginning of the previous track (or the current track during playback)/beginning of the next track. After releasing the button, press it repeatedly within 1 second to hear a notification sound and skip to the beginning of the previous/next track.
Note
If the communication condition is poor, the Bluetooth device may react
incorrectly to the operation on the headset.
The available functions may vary depending on the connected device, the music
software, or app used. In some cases, it may operate differently or may not
work even when the operations described above are performed.
5-044-178-11(1) Copyright 2023 Sony Corporation
65
Help Guide
Wireless Stereo Headset
WH-CH520
Disconnecting Bluetooth connection (after use)
1 Disconnect the Bluetooth connection by operating the Bluetooth device. You
will hear a notification sound.
2 Turn off the headset. You will hear a notification sound.
Hint
When you finish playing music, the Bluetooth connection may terminate
automatically depending on the Bluetooth device.
Related Topic Turning off the headset
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66
Help Guide
Wireless Stereo Headset
WH-CH520
About 360 Reality Audio
What is 360 Reality Audio?
360 Reality Audio is a new music experience using Sony’s 360 three-dimensional
audio technology. Positional information is attached to each sound source such
as vocals, chorus, and musical instruments, and are placed in a spherical
space. Listeners can experience a three-dimensional sound field as if they are
immersed in a live performance of the artists.
Conditions of use
Download and use a music streaming service (charged) app that supports 360
Reality Audio on your smartphone or tablet equipped with iOS or Android. By
optimizing the sound field and the acoustic feature of headset with the “Sony
| Headphones Connect” app, you can enjoy a more realistic sense of reality.
For details on 360 Reality Audio, refer to the following URL.
https://www.sony.net/360RA/
Note
Service is not available in certain countries and regions.
5-044-178-11(1) Copyright 2023 Sony Corporation
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Help Guide
Wireless Stereo Headset
WH-CH520
About the sound quality mode
The following 2 sound quality modes during Bluetooth playback can be selected.
You can switch the settings and check the sound quality mode with the “Sony |
Headphones Connect” app. Priority on sound quality: Prioritizes the sound
quality (default). Priority on stable connection: Prioritizes the stable
connection.
When you want to prioritize the sound quality, select “Priority on sound
quality”. If the connection is unstable, such as when producing only
intermittent sound, select “Priority on stable connection”. Note
The playback time may shorten depending on the sound quality and the
conditions under which you are using the headset. Depending on the ambient
conditions in the area where you are using the headset, intermittent sound may
still occur even if “Priority on stable connection” is selected.
Related Topic What you can do with the “Sony | Headphones Connect” app
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Supported codecs
A codec is an “audio coding algorithm” used when transmitting sound wirelessly
via Bluetooth connection. The headset supports the following 2 codecs for
music playback via an A2DP connection: SBC and AAC.
SBC This is an abbreviation for Subband Codec. SBC is the standard audio
coding technology used in Bluetooth devices. All Bluetooth devices support
SBC. AAC This is an abbreviation for Advanced Audio Coding. AAC is mainly used
in Apple products such as iPhone that can provide a higher sound quality than
that of SBC. When music in one of the above codecs is transmitted from a
connected device, the headset switches to that codec automatically and plays
back the music in the same codec. If the connected device supports a codec of
higher sound quality than SBC, you may need to set the device beforehand to
enjoy music with the desired codec from the supported codecs. Refer to the
operating instructions supplied with the device regarding setting the codec.
Related Topic About the sound quality mode
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About the DSEE function
The DSEE function complements the high-range sound, which is often lost from
compressed sound sources, in the headset to the equivalent of CD sound
quality. Sound sources compressed by streaming playback, MP3, Bluetooth
transmission codec, etc. are played with natural and expansive sound. The DSEE
function can be set up on the “Sony | Headphones Connect” app, and is only
available when connected to the headset via Bluetooth connection.
Note
When DSEE is set to [Auto], the available operating time is reduced.
Related Topic What you can do with the “Sony | Headphones Connect” app
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Receiving a call
You can enjoy a hands-free call with a smartphone or mobile phone that
supports the Bluetooth profile HFP (Hands-free Profile) or HSP (Headset
Profile), via Bluetooth connection.
If your smartphone or mobile phone supports both HFP and HSP, set it to HFP.
The operation may vary depending on the smartphone or mobile phone. Refer to
the operating instructions supplied with the smartphone or mobile phone.
Depending on the connected device or the application you are using, the
functions may not work properly even if you try to operate them with the
headset.
Ring tone
When an incoming call arrives, a ring tone will be heard from the headset, and
the indicator (blue) flashes quickly. You will hear either of following ring
tones, depending on your smartphone or mobile phone.
Ring tone set on the headset Ring tone set on the smartphone or mobile phone
Ring tone only for a Bluetooth connection set on the smartphone or mobile
phone 1 Connect the headset to a smartphone or mobile phone via Bluetooth
connection beforehand.
2 When you hear the ring tone, press the (call) button on the headset and
receive the call. When you receive an incoming call during music playback,
playback pauses and a ring tone will be heard from the headset.
You can talk using the microphone on the right unit.
A: Microphone
If no ring tone is heard via the headset
The headset may not be connected with the smartphone or mobile phone over HFP
or HSP. Check the connection status on the smartphone or mobile phone.
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If music playback does not pause automatically, operate the headset to pause
playback. 3 Adjust the volume by pressing the + (volume +)/ (volume )
buttons of the headset.
When the volume reaches the maximum or minimum, an alarm sounds. 4 When you
finish your phone call, press the (call) button on the headset to end the
call.
If you received a call during music playback, music playback resumes
automatically after ending the call.
Hint
When receiving a call on a smartphone or mobile phone, some smartphones or
mobile phones may receive a call on the phone instead of the headset. With an
HFP or HSP connection, switch the call to the headset by using your smartphone
or mobile phone. Volume for a call can be adjusted during a telephone
conversation only. The headset volume during a call and during music playback
can be independently adjusted. Even if you change the volume during a call,
the volume of music playback does not change.
Note
Depending on the connected device or playback application you are using, when
you receive an incoming call during music playback, playback may not resume
automatically even after you finish the call. Use a smartphone or mobile phone
at least 50 cm (19.69 in.) away from the headset. Noise may result if the
smartphone or mobile phone is too close to the headset. Your voice will be
heard from the headset through the headset’s microphone (Sidetone function).
In this case, ambient sounds or the sounds of the headset operation may be
heard through the headset, but this is not a malfunction.
Related Topic How to make a wireless connection to Bluetooth devices Making a
call Functions for a phone call
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Making a call
You can enjoy a hands-free call with a smartphone or mobile phone that
supports the Bluetooth profile HFP (Hands-free Profile) or HSP (Headset
Profile), via Bluetooth connection.
If your smartphone or mobile phone supports both HFP and HSP, set it to HFP.
The operation may vary depending on the smartphone or mobile phone. Refer to
the operating instructions supplied with the smartphone or mobile phone.
Depending on the connected device or the application you are using, the
functions may not work properly even if you try to operate them with the
headset. 1 Connect the headset to a smartphone or mobile phone via Bluetooth
connection. 2 Operate your smartphone or mobile phone to make a call.
When you make a call, the dial tone is heard from the headset. If you make a
call during music playback, playback pauses. If no dial tone is heard via the
headset, switch the call device to the headset using your smartphone or mobile
phone. You can talk using the microphone on the right unit.
A: Microphone 3 Adjust the volume by pressing the + (volume +)/ (volume )
buttons of the headset.
When the volume reaches the maximum or minimum, an alarm sounds. 4 When you
finish your phone call, press the (call) button on the headset to end the
call.
If you made a call during music playback, music playback resumes automatically
after ending the call.
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Hint
Volume for a call can be adjusted during a telephone conversation only. The
headset volume during a call and during music playback can be independently
adjusted. Even if you change the volume during a call, the volume of music
playback does not change.
Note
Depending on the connected device or playback application you are using, when
you make a call during music playback, playback may not resume automatically
even after you finish the call. Use a smartphone or mobile phone at least 50
cm (19.69 in.) away from the headset. Noise may result if the smartphone or
mobile phone is too close to the headset. Your voice will be heard from the
headset through the headset’s microphone (Sidetone function). In this case,
ambient sounds or the sounds of the headset operation may be heard through the
headset, but this is not a malfunction.
Related Topic How to make a wireless connection to Bluetooth devices Receiving
a call Functions for a phone call
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Functions for a phone call
The functions available during a call may vary depending on the profile
supported by your smartphone or mobile phone. In addition, even if the profile
is the same, the available functions may vary depending on the smartphone or
mobile phone. Depending on the connected device or the application you are
using, the functions may not work properly even if you try to operate them
with the headset. Refer to the operating instructions supplied with the
smartphone or mobile phone.
Supported profile: HFP (Hands-free Profile)
During standby/music playback Press the (call) button twice in 0.5 seconds to
start up the voice dial function of the smartphone/mobile phone, or activate
the GoogleTM app on the Android smartphone or Siri on the iPhone.
Outgoing call Press the (call) button once to cancel an outgoing call.
Incoming call Press the (call) button once to answer a call. Press and hold
the (call) button for about 2 seconds or more to reject a call.
During call Press the (call) button once to finish a call.
Supported profile: HSP (Headset Profile)
Outgoing call Press the (call) button once to cancel an outgoing call.
Incoming call Press the (call) button once to answer a call.
During call Press the (call) button once to finish a call.
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Related Topic Receiving a call Making a call
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Making a video call on your computer
When you make a video call on your computer, you can talk wirelessly from your
headset.
1 Connect the headset to your computer via Bluetooth connection.
2 Launch the video calling application on your computer.
3 Check the settings* of the video calling application. When you make a video
call on your computer, select calling connections (HFP/HSP) and not music
playback connections (A2DP). If you select music playback connections, a video
call may not be available. On the speaker settings, select calling connections
[Headset (WH-CH520 Hands-Free)]. ([Headphones (WHCH520 Stereo)] is for
music playback connections.) On the microphone settings, select calling
connections [Headset (WH-CH520 Hands-Free)]. Depending on the video calling
application you are using, calling connections [Headset (WH-CH520
HandsFree)] or music playback connections [Headphones (WH-CH520 Stereo)]**
may not be selectable on the speaker or microphone settings, and only [WH-
CH520] may be displayed. If this is the case, select [WHCH520]. As for
frequently asked questions and answers, refer to the customer support website.
- Depending on the video calling application you are using, this function may not be available. ** Names may vary according to the computer or the video calling application you are using.
Hint
When the settings of the video calling application cannot be checked or calling connections [Headset (WH-CH520 Hands-Free)] cannot be selected, select [Headset (WH-CH520 Hands-Free)] on the settings of your computer to make connections. See “Connecting to a paired computer (Windows 11)”, “Connecting to a paired computer (Windows 10)” or “Connecting to a paired computer (Mac)”.
Note
Depending on the computer or application you are using, the headset may not work properly during a video call. This may be improved by restarting the computer.
Related Topic How to make a wireless connection to Bluetooth devices Pairing and connecting with a computer (Windows® 11) Pairing and connecting with a computer (Windows 10) Pairing and connecting with a computer (Mac) Connecting to a paired computer (Windows 11) Connecting to a paired computer (Windows 10) Connecting to a paired computer (Mac)
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Disconnecting Bluetooth connection (after use) Customer support websites
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Disconnecting Bluetooth connection (after use)
1 Disconnect the Bluetooth connection by operating the Bluetooth device. You
will hear a notification sound.
2 Turn off the headset. You will hear a notification sound.
Hint
When you finish playing music, the Bluetooth connection may terminate
automatically depending on the Bluetooth device.
Related Topic Turning off the headset
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Using the voice assist function (Google app)
By using the Google app that comes with the Android smartphone, you can speak
to the headset’s microphone to operate the Android smartphone.
1 Set the assist and voice input selection to the Google app. On the Android
smartphone, select [Settings] – [Apps & notifications] – [Advanced] – [Default
apps] – [Assist & voice input], and set [Assist app] to the Google app. The
operation above is an example. For details, refer to the operating
instructions of the Android smartphone. Note: The latest version of the Google
app may be required. For details on the Google app, refer to the operating
instructions or the support website of the Android smartphone, or the Google
Play store website. The Google app may not be activated from the headset
depending on specifications of the Android smartphone.
2 Connect the headset to the Android smartphone via Bluetooth connection.
3 When the Android smartphone is in standby or playing music, press the headset twice in 0.5 seconds.
(play/call) button on the
The Google app is activated. 4 Make a request to the Google app through the headset’s microphone.
A: Microphone For details on the apps which work with the Google app, refer to
the operating instructions of the Android smartphone. After activating the
Google app, the voice command is canceled when a certain time has passed
without requests.
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Note
The Google app cannot be activated when you say “Ok Google” even when the
Android smartphone’s “Ok Google” setting is on. When using the voice assist
function, your voice will be heard from the headset through the headset’s
microphone (Sidetone function). In this case, ambient sounds or the sounds of
the headset operation may be heard through the headset, but this is not a
malfunction. The Google app may not be activated depending on specifications
of the smartphone or application version. The Google app does not work when
connected to a device not compatible with the voice assist function. Be
careful because the headset will turn off when you press and hold the
(play/call) button.
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Using the voice assist function (Siri)
By using Siri that comes with iPhone, you can speak to the headset’s
microphone to operate the iPhone.
1 Turn Siri on. On iPhone, select [Settings] – [Siri & Search] to turn [Press
Home for Siri] and [Allow Siri When Locked] on. The operation above is an
example. For details, refer to the operating instructions of the iPhone. Note:
For details on Siri, refer to the operating instructions or support website of
the iPhone.
2 Connect the headset to the iPhone via Bluetooth connection.
3 When the iPhone is in standby or playing music, press the seconds.
(play/call) button on the headset twice in 0.5
Siri is activated. 4 Make a request to Siri through the headset’s microphone.
A: Microphone For details on the apps which work with Siri, refer to the
operating instructions of the iPhone. After activating Siri, when a certain
time has passed without requests, Siri will be deactivated.
Note
Siri cannot be activated when you say “Hey Siri” even when the iPhone’s “Hey
Siri” setting is on. When using the voice assist function, your voice will be
heard from the headset through the headset’s microphone (Sidetone function).
In this case, ambient sounds or the sounds of the headset operation may be
heard through the headset, but this is not a malfunction.
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Siri may not be activated depending on specifications of the smartphone or
application version. Be careful because the headset will turn off when you
press and hold the (play/call) button.
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What you can do with the “Sony | Headphones Connect” app
When you connect the smartphone with the “Sony | Headphones Connect” app
installed and the headset via Bluetooth connection, you can do the following.
Update the headset software Switch the voice guidance language Turn the voice
guidance on/off Set the Bluetooth connection mode (sound quality mode) Turn
off the headset Check the connection status and the settings of the headset
Set the multipoint connection (connecting the headset to 2 devices
simultaneously) Check the headset software version Display the Bluetooth
connection codec Display the DSEE function setting status Set the DSEE
function Display the remaining battery charge of the headset Set the
Equalizer/CLEAR BASS setting Customize the Equalizer setting Adjust the volume
during music playback/phone call Play/pause music or skip to the beginning of
the previous track (or the current track during playback)/skip to the
beginning of the next track Easy pairing Set the 360 Reality Audio function
For details on the “Sony | Headphones Connect” app, refer to the following
URL. https://rd1.sony.net/help/mdr/hpc/h_zz/
Hint
The operation of the “Sony | Headphones Connect” app differs depending on the
audio device. The app specifications and screen design may change without
prior notice.
Related Topic Installing the “Sony | Headphones Connect” app Checking the
remaining battery charge About the sound quality mode Supported codecs About
the DSEE function Connecting the headset to 2 devices simultaneously
(multipoint connection) About 360 Reality Audio
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Installing the “Sony | Headphones Connect” app
1 Download the “Sony | Headphones Connect” app from the Google Play store or
App Store, and install the app on your smartphone. For details on the “Sony |
Headphones Connect” app, refer to the following URL.
https://rd1.sony.net/help/mdr/hpc/h_zz/
2 After installing the app, launch the “Sony | Headphones Connect” app.
Related Topic
What you can do with the “Sony | Headphones Connect” app
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Accessing support information from the “Sony | Headphones Connect” app
You can access the latest support information from the “Sony | Headphones
Connect” app. 1 Select [Help] on the “Sony | Headphones Connect” app screen. 2
The [Headphones Connect Help] screen appears and support information is
displayed. 3 Select the desired item.
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How to keep the software up-to-date (for comfortable use of the headset)
If the latest software for your headset comes out, a notification will appear
on the screen of the “Sony | Headphones Connect” app. Update the headset
software following the on-screen instructions. Install the latest headset
software to enjoy new functions or to resolve a certain number of issues with
the headset. Always use the headset with the latest software installed. For
details on the latest headset software and how to update the software, refer
to the information on the support website. You can update the headset software
in the following way.
1 Turn on the headset. Press and hold the (power) button for about 2 seconds
or more.
2 Launch the “Sony | Headphones Connect” app on a mobile device such as a
smartphone.
3 Update the headset software following the on-screen instructions.
Note
When the mobile device used for the update has any other Bluetooth devices
connected to it, turn off all the Bluetooth devices until the update is
complete. Software may not be updated when the mobile device is connected with
other devices compatible with Bluetooth Low Energy (such as wearable devices,
smart watches, etc.). Note the following if the update cannot be completed.
Close all the apps installed on the mobile device except the “Sony |
Headphones Connect” app. Fully charge the headset and the mobile device. Put
the headset and the mobile device being used for the update as close to each
other as possible before starting the update. Keep wireless LAN devices and
other Bluetooth devices away from the headset when updating. Turn off the
power saving mode* of your mobile device before updating the software.
Depending on the OS version of your mobile device, the update may not be
completed under the power saving mode.
- Names may vary according to the mobile device you are using.
Related Topic What you can do with the “Sony | Headphones Connect” app
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Precautions
On Bluetooth communications
Bluetooth wireless technology operates within a range of about 10 m (32.8 ft).
The maximum communication distance may vary depending on the presence of
obstacles (people, metal objects, walls, etc.) or the electromagnetic
environment. Microwaves emitting from a Bluetooth device may affect the
operation of electronic medical devices. Turn off the headset and other
Bluetooth devices in the following locations, as it may cause an accident:
in hospitals, near priority seating in trains, locations where inflammable gas
is present, near automatic doors, or near fire alarms.
This product emits radio waves when used in wireless mode. When used in
wireless mode on an airplane, follow flight crew directions regarding
permissible use of products in wireless mode. The audio playback on the
headset may be delayed from that on the transmitting device, due to the
characteristics of Bluetooth wireless technology. As a result, the sound may
not be in sync with the image when viewing movies or playing games. The
headset supports security functions that comply with the Bluetooth standard as
a means of ensuring security during communication using Bluetooth wireless
technology. However, depending on the configured settings and other factors,
this security may not be sufficient. Be careful when communicating using
Bluetooth wireless technology. Sony shall assume no responsibility for any
damages or loss resulting from information leaks that occur when using
Bluetooth communications. Bluetooth connections with all Bluetooth devices
cannot be guaranteed.
Bluetooth devices connected with the headset must comply with the Bluetooth
standard prescribed by Bluetooth SIG, Inc., and must be certified as
compliant. Even when a connected device complies with the Bluetooth standard,
there may be cases where the characteristics or specifications of the
Bluetooth device make it unable to connect, or result in different control
methods, display, or operation. When using the headset to perform hands-free
talking on the phone, noise may occur depending on the connected device or the
communication environment.
Depending on the device to be connected, it may require some time to start
communications.
Note on static electricity
If you use the headset when the air is dry, you may experience discomfort due
to static electricity accumulated on your body. This is not a malfunction of
the headset. You can reduce the effect by wearing clothes made of natural
materials that do not easily generate static electricity.
Notes on wearing the headset
Because the headset achieves a tight seal over the ears, forcibly pressing it
against your ears or quickly pulling it off can result in eardrum damage.
Pressing the headset against your ears may cause the speaker diaphragm to
produce a click sound. This is not a malfunction.
Other notes
Do not subject the headset to excessive shock as it is a precision device. The
Bluetooth function may not work with a mobile phone, depending on the signal
conditions and the surrounding environment. Do not apply weight or pressure to
the headset for long periods, including when it is stored, as it may cause
deformation. If you experience discomfort while using the headset, stop using
it immediately.
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The earpads may be damaged or deteriorate with long-term use and storage. The
headset is not waterproof. If water or foreign matter enters the headset, it
may result in fire or electric shock. If water or foreign matter enters the
headset, stop use immediately and consult your nearest Sony dealer. Cleaning
the headset When the headset exterior is dirty, wipe it clean with a soft dry
cloth. If the headset is particularly dirty, soak a cloth in diluted neutral
detergent, and wring it well before using it to clean the headset. Do not use
solvents such as thinner, benzene, or alcohol, as they may damage the finish
on the surface of the headset or cause other damages. Do not use the headset
near medical devices Radio waves can affect cardiac pacemakers and medical
devices. Do not use the headset in crowded places such as crowded trains or
inside a medical institution. The headset has magnet(s) which may interfere
with pacemakers, programmable shunt valves for hydrocephalus treatment, or
other medical devices. Do not place the headset close to persons who use such
medical devices. Consult your doctor before using the headset if you use any
such medical device. Keep the headset away from the magnetic card The headset
has magnets. If you bring a magnetic card close to the headset, the card
magnet may be affected and become unusable.
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To prevent burning or malfunction due to getting wet
On waterproof performance of the headset
The headset is not waterproof. If water or foreign matter enters the headset,
this can result in burnout or malfunction. Avoid situations such as the
following and be careful not to get moisture or dirt on the headset.
Using the headset in the rain or snow
Touching the headset without drying wet hands after doing housework in the
kitchen or washing hands in the washroom
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Touching the headset with sweaty hands, or using the headset in situations
where the headset may get soaked in sweat
Putting the headset in a bag with a cold PET bottle
If the headset gets wet, or water enters the headset
If a wet headset is charged or turned on, this can result in burnout or
malfunction. While subjecting the headset to as little vibration as possible,
turn the earpads downward slowly, and let water drain from the earpads. Then,
position the headset upright and put a dry cloth under the USB Type-C port
until no more water comes out from the inside. After that, leave the headset
in a shaded, well-ventilated place until it is completely dry.
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A: USB Type-C port
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Licenses
This product contains software that Sony uses under a licensing agreement with
the owner of its copyright. We are obligated to announce the contents of the
agreement to customers under requirement by the owner of copyright for the
software. Please access the following URL and read the contents of the
license. https://rd1.sony.net/help/mdr/sl/23/ Services offered by third
parties may be changed, suspended, or terminated without prior notice. Sony
does not bear any responsibility in these sorts of situations.
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Trademarks
Microsoft, Windows and Windows Media are either trademarks or registered
trademarks of Microsoft Corporation in the United States and/or other
countries. iPhone, iPod touch, macOS, Mac and Siri are trademarks of Apple
Inc., registered in the U.S. and other countries. App Store is a service mark
of Apple Inc., registered in the U.S. and other countries. IOS is a trademark
or registered trademark of Cisco in the U.S. and other countries and is used
under license. Google, Android and Google Play are trademarks of Google LLC.
The Bluetooth® word mark and logos are registered trademarks owned by
Bluetooth SIG, Inc. and any use of such marks by Sony Group Corporation and
its subsidiaries is under license. USB Type-C® and USB-C® are registered
trademarks of USB Implementers Forum. DSEE is a trademark or registered
trademark of Sony Group Corporation or its affiliates. All other trademarks
and registered trademarks are trademarks or registered trademarks of their
respective holders. In this manual, TM and ® marks are not specified.
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Customer support websites
For customers in the U.S.A, Canada, and Latin America:
https://www.sony.com/am/support For customers in European countries:
https://www.sony.eu/support For customers in China:
https://service.sony.com.cn For customers in other countries/regions:
https://www.sony-asia.com/support
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What can I do to solve a problem?
If the headset does not function as expected, try the following steps to
resolve the issue. Find the symptoms of the issue in this Help Guide, and try
any corrective actions listed. Charge the headset. You may be able to resolve
some issues by charging the headset battery. Restart the device that is being
connected to the headset. You may be able to resolve some issues by restarting
the device being connected such as your computer or smartphone. Reset the
headset. Initialize the headset. This operation resets volume settings, etc.
to the factory settings, and deletes all pairing information. Look up
information on the issue on the customer support website.
If the operations above do not work, consult your nearest Sony dealer.
Related Topic Charging the headset Customer support websites Resetting the
headset Initializing the headset to restore factory settings
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Unable to turn on the headset.
Make sure the battery is fully charged. The headset cannot be turned on while
charging the battery. Remove the USB Type-C cable and turn on the headset.
Reset the headset. Initialize the headset, and pair the headset and the device
again. Related Topic Charging the headset Checking the remaining battery
charge Turning on the headset Resetting the headset Initializing the headset
to restore factory settings
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Charging cannot be done.
Common
Be sure to use the supplied USB Type-C cable. It is recommended to charge in a
place with an ambient temperature between 15 °C and 35 °C (59 °F – 95 °F).
Efficient charging may not be possible beyond this range. Reset the headset.
Initialize the headset, and pair the headset and the device again.
When charging with a USB AC adaptor
Make sure that the USB AC adaptor is firmly connected to the AC outlet. When
using a commercially available USB AC adaptor, use one capable of supplying an
output current of 0.5 A (500 mA) or more.
When charging with a computer
Check that the supplied USB Type-C cable is properly connected to the USB port
of the computer. Check that the computer is turned on. Wake the computer up if
the computer is in standby (sleep) or hibernation mode. Check that the headset
and the computer are directly connected, and not via a USB hub. There may be a
problem with the USB port of the connected computer. Try connecting to another
USB port on the computer if one is available. Update the OS of the computer.
Restart the computer and try the USB connection procedure again in cases other
than those stated above.
Related Topic Charging the headset Resetting the headset Initializing the
headset to restore factory settings
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Charging time is too long.
When charging with a computer, check that the headset and the computer are
directly connected, and not via a USB hub. Also, this may be improved by
restarting the computer and trying the USB connection again. Check that you
are using the supplied USB Type-C cable. It is recommended to charge in a
place with an ambient temperature between 15 °C and 35 °C (59 °F – 95 °F).
Efficient charging may not be possible beyond this range.
Related Topic Charging the headset
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The available operating time is short (the duration of the battery is short).
If you set the following functions, the available operating time of the
battery becomes short. Sound quality mode during Bluetooth playback: Priority
on sound quality Equalizer DSEE
If you run the above settings at the same time, the available operating time
of the battery becomes even shorter.
If the headset is not used for a long time, the rechargeable battery usage
hours may be reduced. However, the battery life will improve after charging
and discharging several times. If you store the headset for a long time,
charge the battery once every 6 months to avoid over-discharge. It is
recommended to charge in a place with an ambient temperature between 15 °C and
35 °C (59 °F – 95 °F). Efficient charging may not be possible beyond this
range. If the problem persists, consult your nearest Sony dealer. If the usage
hours of the built-in rechargeable battery decrease significantly, the battery
should be replaced. Consult your nearest Sony dealer.
Related Topic Available operating time
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No sound
Check that both the headset and the connected device are turned on. When
playing music, check that the headset and the transmitting Bluetooth device
are connected via an A2DP Bluetooth connection. When using a video calling
application on a computer, check that the headset and the computer are
connected via an HFP or HSP Bluetooth connection. Depending on the video
calling application you are using, microphone settings may not be available.
When you connect the headset to 2 devices simultaneously with multipoint
connection, depending on the connected device, the device may keep sending the
silent signal even if the playback of the music or video is stopped. In this
case, the headset remains connected with the device, and the connection may
not be changed to another device. If the sound from the second device cannot
be heard after the playback is stopped on the first device, operate in the
following order and check whether the situation has improved.
Check with the “Sony | Headphones Connect” app that the setting of [Connect to
2 devices simultaneously] is on. Stop the playback of the application on the
first device. Shut down the application on the first device. Turn up the
volume if it is too low. Check that the connected device is playing back. If
you are connecting a computer to the headset, make sure the audio output on
the computer is set for a Bluetooth device. Pair the headset and the Bluetooth
device again. Restart the smartphone or the computer you use. Reset the
headset. Initialize the headset, and pair the headset and the device again.
Related Topic How to make a wireless connection to Bluetooth devices Listening
to music from a device via Bluetooth connection Resetting the headset
Initializing the headset to restore factory settings
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Low sound level
Adjust the volume of the headset and the connected device. Connect the
Bluetooth device to the headset once again. Reset the headset. Initialize the
headset, and pair the headset and the device again. Note
Depending on the connected device, the volume of the device and the headset
may or may not be synced. If the volume on a device is not synced to the
volume on the headset, it will not be possible to use the device to turn up
the volume on the headset once the volume is turned down on the headset. In
that case, turn up the volume of both the headset and the connected device. If
the sound is still low even after adjusting the volume on the connected
device, adjust the volume with the “Sony | Headphones Connect” app.
Related Topic Resetting the headset Initializing the headset to restore
factory settings
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Low sound quality
Turn down the volume of the playback device if it is too loud. When playing
music, check the connection status of the headset and the transmitting
Bluetooth device. When the headset and the transmitting Bluetooth device are
connected via an HFP or HSP Bluetooth connection, switch the Bluetooth
connection to A2DP with the connected device. When using a video calling
application on a computer, switch the Bluetooth connection to HFP or HSP by
operating the computer. During a video call, sound quality may become low due
to the conditions of the communication line. If the headset connects to the
previously connected Bluetooth device, the headset may only establish the
HFP/HSP Bluetooth connection when it is turned on. Use the connected device to
connect via an A2DP Bluetooth connection. When listening to music from a
computer on the headset, the sound quality may be poor (difficult to hear the
singer’s voice, etc.) for the first few seconds after a connection is
established. This is due to the computer specifications (priority on stable
connection at the start of transmission and then switches to priority on sound
quality several seconds later) and is not a headset malfunction. If the sound
quality does not improve after a few seconds, use the computer to establish an
A2DP connection. As for the operations on your computer, refer to the
operating instructions supplied with the computer.
Related Topic Listening to music from a device via Bluetooth connection Making
a video call on your computer
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Sound skips frequently.
Set the headset to “Priority on stable connection”. For details, see “About
the sound quality mode”. This issue can be improved by changing the wireless
playback quality settings on the transmitting device. For details, refer to
the operating instructions supplied with the transmitting device. Remove any
obstacles between the antenna of the connecting Bluetooth device and the
built-in antenna of the headset. The antenna of the headset is built into the
part shown in the dotted line below.
A: Location of the built-in antenna Bluetooth communications may be disabled,
or noise or audio dropout may occur under the following conditions.
When there is a human body between the headset and the Bluetooth device When
this is the case, turn the Bluetooth device to face the same direction as the
antenna of the headset to improve the Bluetooth communications. When there is
an obstacle, such as metal or a wall, between the headset and the Bluetooth
device In places with wireless LAN, where a microwave oven is used,
electromagnetic waves are generated, etc. Where there are other wireless
communication audio devices or other people nearby, such as in train station
premises or on a crowded train If you are enjoying music with your smartphone,
the situation may be improved by closing unnecessary apps or restarting your
smartphone. If you are enjoying music with your computer, close unnecessary
applications or windows and restart the computer. Connect the headset and the
Bluetooth device once again. Reset the headset. Initialize the headset, and
pair the headset and the device again.
Related Topic About the sound quality mode Resetting the headset Initializing
the headset to restore factory settings
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Pairing cannot be done.
Bring the headset and the Bluetooth device within 1 m (3.2 ft) from each
other. When pairing a device for the first time after purchase or after
initializing or repairing the headset, turn on the headset and the headset
automatically enters pairing mode. To pair a second or subsequent device,
press and hold the (Bluetooth) button on the headset for about 5 seconds or
more to enter pairing mode. When pairing a device once again after
initializing or repairing the headset, you may be unable to pair the device if
it retains pairing information for the headset (iPhone or other device). In
this case, delete the pairing information for the headset from the device and
pair them again. Restart the connected device such as a smartphone or a
computer you use, and pair the headset and the device again. Reset the
headset. Initialize the headset, and pair the headset and the device again.
Related Topic How to make a wireless connection to Bluetooth devices Resetting
the headset Initializing the headset to restore factory settings
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Unable to make a Bluetooth connection.
Check that the headset is turned on. Check that the Bluetooth device is turned
on and the Bluetooth function is on. If the headset automatically connects to
the last connected Bluetooth device, you may fail to connect the headset to
other devices via Bluetooth connection. If this is the case, operate the last
connected Bluetooth device and disconnect the Bluetooth connection. Check if
the Bluetooth device is in sleep mode. If the device is in sleep mode, cancel
the sleep mode. Check if the Bluetooth connection has been terminated. If
terminated, make the Bluetooth connection again. If the pairing information
for the headset has been deleted on the Bluetooth device, pair the headset
with the device again. Reset the headset. Initialize the headset, and pair the
headset and the device again.
Related Topic How to make a wireless connection to Bluetooth devices Resetting
the headset Initializing the headset to restore factory settings
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The headset cannot be operated.
Reset the headset. This operation does not delete pairing information. If the
headset does not operate properly even if you reset the headset, initialize
the headset. Related Topic Resetting the headset Initializing the headset to
restore factory settings
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Cannot hear the other person or the call volume is low during calls/The other
person cannot hear you or their call volume is low during calls.
Check that both the headset and the connected device are turned on. Turn up
the volume of the connected device and the volume of the headset if they are
too low. When you use the video calling application, open the settings* of the
video calling application, and check that the speaker or microphone setting is
specified as [Headset (WH-CH520 Hands-Free)]**. When the settings of the video
calling application cannot be checked or calling connections [Headset (WH-
CH520 Hands-Free)] cannot be selected, select [Headset (WH-CH520 Hands-Free)]
on the settings of your computer to make connections.
- Depending on the video calling application you are using, this function may not be available. ** Names may vary according to the computer or the video calling application you are using.
Operate the Bluetooth device to re-establish the connection. Select HFP or HSP for the profile. If you are listening to music with the headset, stop playback and press the (call) button to respond to an incoming call. Reset the headset. Initialize the headset, and pair the headset and the device again.
Related Topic How to make a wireless connection to Bluetooth devices Receiving a call Making a call Resetting the headset Initializing the headset to restore factory settings
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Resetting the headset
If the headset cannot be turned on or cannot be operated even when it is
turned on, reset the headset. 1 Connect the headset to an AC outlet. Use the
supplied USB Type-C cable and a commercially available USB AC adaptor.
A: USB AC adaptor 2 Press the + (volume +) button and the (volume ) button
simultaneously.
The headset will be reset. The pairing information and other settings are
retained. If the headset does not operate correctly even after resetting,
initialize the headset to restore factory settings.
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Related Topic Initializing the headset to restore factory settings
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Initializing the headset to restore factory settings
If the headset does not operate correctly even after resetting, initialize the
headset. 1 Turn off the headset. Remove the USB Type-C cable.
2 Press and hold the (power) button and (volume ) button for about 10
seconds or more.
When the initializing is complete, the indicator (blue) flashes 4 times ( – – – -).
This operation resets volume settings, etc. to the factory settings, and deletes all pairing information. In this case, delete the pairing information for the headset from the connected device and then pair them again. If the headset does not operate correctly even after initializing, consult your nearest Sony dealer.
Related Topic Turning off the headset Resetting the headset
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Specifications
Headset Power source:
DC 3.7 V: Built-in lithium-ion rechargeable battery DC 5 V: When charged using
USB
Operating temperature:
0 °C to 40 °C (32 °F to 104 °F)
Charging time:
Approx. 3 hours
Note
Charging and usage hours may be different depending on the conditions of use.
Charging temperature:
5 °C to 35 °C (41 °F to 95 °F)
Mass:
Approx. 147 g (5.2 oz)
Communication specification Communication system:
Bluetooth Specification version 5.2
Output:
Bluetooth Specification Power Class 1
Maximum communication range:
Line of sight approx. 10 m (32.8 ft)1)
Frequency band:
2.4 GHz band (2.4000 GHz – 2.4835 GHz)
Compatible Bluetooth profiles2):
A2DP AVRCP HFP HSP
Supported Codec3):
SBC
113
AAC
Transmission range (A2DP):
20 Hz – 20 000 Hz (Sampling frequency 44.1 kHz)
- The actual range will vary depending on factors such as obstacles between devices, magnetic fields around a microwave oven, static electricity, reception sensitivity, antenna’s performance, operating system, software application, etc.
- Bluetooth standard profiles indicate the purpose of Bluetooth
communications between devices. 3) Codec: Audio signal compression and
conversion format
Design and specifications are subject to change without notice.
Compatible iPhone/iPod models
iPhone SE (3rd generation) iPhone 13 Pro Max iPhone 13 Pro iPhone 13 iPhone 13 mini iPhone 12 Pro Max iPhone 12 Pro iPhone 12 iPhone 12 mini iPhone SE (2nd generation) iPhone 11 Pro Max iPhone 11 Pro iPhone 11 iPhone XS Max iPhone XS iPhone XR iPhone X iPhone 8 Plus iPhone 8 iPhone 7 Plus iPhone 7 iPhone SE iPhone 6s Plus iPhone 6s iPod touch (7th generation) (As of May 2022)
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References
- Sony Group Portal - Home
- Sony | Headphones Connect - Apps on Google Play
- Help Guide | Top
- Help Guide | Top
- Help Guide | Top
- 索尼官网- 索尼服务与支持网站首页_索尼售后_Sony售后首页
- Select your country or region | Sony AP
- Select your country or region | Sony USA
- Sony Electronics - Televisions, Audio, Cameras, Mobile, Video Cameras
- Sony Support Europe
- Sony Corporation - Home
- 360 Reality Audio | So immersive. So real. | Sony Australia
- Support for Sony products | Sony UK