SONY Wireless Noise Cancelling Stereo Headset User Guide
- June 7, 2024
- Sony
Table of Contents
Wireless Noise
Canceling Stereo
Headset
Reference Guide
WH-CH700N
Do not install the appliance in a
confined space, such as a bookcase or built-in cabinet.
Do not expose the batteries (battery pack or batteries installed) to excessive
heat such as sunshine, fire, or the like for a long time.
Do not dismantle, open or shred secondary cells or batteries. In the event of
a cell leaking, do not allow the liquid to come in contact with the skin or
eyes. If contact has been made, wash the affected area with copious amounts of
water and seek medical advice.
Secondary cells and batteries need to be charged before use. Always refer to
the manufacturer’s instructions or equipment manual for proper charging
instructions. After extended periods of storage, it may be necessary to charge
and discharge the cells or batteries several times to obtain maximum
performance. Dispose of properly.
Notice for customers: the following information is only applicable to
equipment sold in countries applying EU directives.
This product has been manufactured by or on behalf of Sony Corporation.
EU Importer: Sony Europe Limited.
Inquiries to the EU Importer or related to product compliance in Europe should
be sent to the manufacturer’s authorized representative, Sony Belgium,
bijkantoor van Sony Europe LimiteDa Vincilaan 7-D1, 1935 Zaventem, Belgium.
Hereby, Sony Corporation declares that this equipment is in compliance with
Directive 2014/53/EU.
The full text of the EU declaration of conformity is available at the
following internet address:
http://www.compliance.sony.de/
Disposal of waste batteries and electrical and electronic equipment
(applicable in the European Union and other European countries with separate
collection systems) This symbol on the product, the battery or on the
packaging indicates that the product and the battery shall not be treated as
household waste. On certain batteries, this symbol might be used in On certain
batteries this symbol might be used in combination with a chemical symbol.
The chemical symbols for mercury (Hg) or lead (Pb) are added if the battery
contains more than 0.0005% mercury or 0.004% lead. By ensuring these products
and batteries are disposed of correctly, you will help prevent potentially
negative consequences for the environment and human health which could
otherwise be caused by inappropriate waste handling. The recycling of the
materials will help to conserve natural resources.
In case of products that for safety, performance, or data integrity reasons
require a permanent connection with an incorporated battery, this battery
should be replaced by qualified service staff only. To ensure that the battery
and the electrical and electronic equipment will be treated properly, hand
over these products at end-of-life to the applicable collection point for the
recycling of electrical and electronic equipment. For all other batteries,
please view the section on how to remove the battery from the product safely.
Hand the battery over to the applicable collection point for the recycling of
waste batteries. For more detailed information about recycling of this product
or battery, please contact your local Civic Office, your household waste
disposal service or the shop where you purchased the product or battery.
The validity of the CE marking is restricted to only those countries where it
is legally enforced, mainly in the countries EEA (European Economic Area).
The Bluetooth® word mark and logos are registered trademarks owned by the
Bluetooth SIG, Inc. and any use of such marks by Sony Corporation is under
license.
The N-Mark is a trademark or registered trademark of NFC Forum, Inc. in the
United States and in other countries.
Windows is a registered trademark or trademark of Microsoft Corporation in the
United States and/or other countries.
Apple, iPhone, iPod, iPod touch, macOS, and Mac are trademarks of Apple Inc.,
registered in the U.S. and other countries.
Use of the Made for Apple badge means that an accessory has been designed to
connect specifically to the Apple product(s) identified in the badge, and has
been certified by the developer to meet Apple performance standards. Apple is
not responsible for the operation of this device or its compliance with safety
and regulatory standards.
Qualcomm® aptX™ audio is a product of Qualcomm Technologies International,
Ltd.
Qualcomm is a trademark of Qualcomm Incorporated, registered in the United
States and other countries, used with permission. aptX is a trademark of
Qualcomm Technologies International, Ltd., registered in the United States
and other countries, used with permission.
Android is a trademark of Google LLC.
Other trademarks and trade names are those of their respective owners.
Precautions
On BLUETOOTH® communications
-
Bluetooth wireless technology operates within a range of about 10 m. Maximum communication range may vary depending on obstacles (human body, metal, wall, etc.) or electromagnetic environment.
-
Bluetooth communications may be disabled, or noise or audio dropout may occur under the following conditions.
– There is a human body between the unit and the Bluetooth device.
This situation may be improved by placing the Bluetooth device facing the aerial of the unit.
– There is an obstacle, such as metal or a wall, between the unit and the Bluetooth device.
– A Wi-Fi device or microwave oven is in use, or microwaves are emitted near the unit.
– The aerial is built into the unit as illustrated in the dotted line (Fig. A).
The sensitivity of the Bluetooth communications will improve by removing any obstacles between the connected Bluetooth device and the aerial of this unit. -
Because Bluetooth devices and Wi-Fi (IEEE802.11b/g/n) use the same frequency (2.4 GHz), microwave interference may occur resulting in noise or audio dropout or communications being disabled if this unit is used near a Wi-Fi device. In such a case, perform the following.
– Use this unit at least 10 m away from the Wi-Fi device.
– If this unit is used within 10 m of a Wi-Fi device, turn off the Wi-Fi device.
– Install this unit and the Bluetooth device as near to each other as possible. -
Microwaves emitting from a Bluetooth device may affect the operation of electronic medical devices. Turn off this unit and other Bluetooth devices in the following locations, as it may cause an accident:
– where inflammable gas is present, in a hospital, or a petrol station
– near automatic doors or a fire alarm. -
Due to the characteristic of the wireless technology, the sound played on this unit is delayed from the sound and music played on the sending device. Therefore, the image and sound may be misaligned when viewing a movie or playing a game.
-
This product emits radio waves when used in wireless mode.
When used in wireless mode on an airplane, follow flight crew directions regarding the permissible use of products in wireless mode. -
This unit supports security capabilities that comply with the Bluetooth standard to provide a secure connection when the Bluetooth wireless technology is used, but security may not be enough depending on the setting. Be careful when communicating using Bluetooth wireless technology.
-
We do not take any responsibility for the leakage of information during Bluetooth communications.
-
Connection with all Bluetooth devices cannot be guaranteed.
– A device featuring Bluetooth function is required to conform to the Bluetooth standard specified by Bluetooth SIG, Inc. and be authenticated.
– Even if the connected device conforms to the above mentioned Bluetooth standard, some devices may not be connected or work correctly, depending on the features or specifications of the device.
– While talking on the phone hands-free, noise may occur, depending on the device or communication environment. -
Depending on the device to be connected, it may require some time to start communications.
If sound skips frequently during playback
-
The situation may be improved by setting the sound quality mode to “priority on stable connection.” For details, refer to the Help Guide.
-
The situation may be improved by changing the wireless playback quality settings or fixing the wireless playback mode to SBC on the transmitting device. For details, refer to the operating instructions supplied with the transmitting device.
-
If you are using a smartphone, the situation may be improved by shutting down unnecessary applications or rebooting the smartphone.
On the use of calling apps for smartphones and computers -
This unit supports normal incoming calls only. Calling apps for smartphones and computers are not supported.
On charging the unit
- This unit can be charged using USB only. A personal computer with a USB port is required for charging.
- When charging, the unit cannot be turned on, and the Bluetooth and noise-canceling functions cannot be used.
- You can use the unit by connecting the supplied headphone cable, even while charging the unit.
- If you do not use the unit for a long time, the rechargeable battery may not be able to keep sufficient charge. The battery will be able to keep a charge properly after repeatedly discharging and charging several times.
- If you store the unit for a long time, charge the battery once every half year to prevent over-discharge.
- If the length of time you can use the unit became extremely short, the rechargeable battery should be replaced with a new one. Please contact your nearest Sony dealer for a battery replacement.
Note on static electricity
- Static electricity accumulated in the body may cause mild tingling in your ears. To minimize the effect, wear clothes made from natural materials.
If the unit does not operate properly
-
Reset the unit (Fig. B ).
Press the and NC buttons simultaneously while charging. The unit will be reset. Pairing information is not deleted. -
If the problem persists even after the resetting operation above, initialize the unit as follows.
Disconnect the micro-USB cable from the micro-USB port, turn off the unit, then hold down the and buttons simultaneously for more than 7 seconds. The indicator (blue) flashes 4 times, and the unit is reset to the factory settings. All pairing information is deleted.
• After the unit is initialized, it may not connect to your iPhone or computer. In this case, delete the pairing information of the unit from the iPhone or computer, and then pair them again. What is noise-canceling?
• The noise canceling circuit actually senses outside noise with built-in microphones and sends an equal- but opposite canceling signal to the unit.
– The noise-canceling effect may not be pronounced in a very quiet environment, or some noise may be heard.
– The noise-canceling effect may vary depending on how you wear the unit.
– The noise-canceling function works for noise in the low-frequency band primarily. Although noise is reduced, it is not canceled completely.
– When you use the unit in a train or a car, noise may occur depending on street conditions.
– Mobile phones may cause interference and noise. Should this occur, locate the unit further away from the mobile phone.
– Do not cover the microphones of the headset ( 1 ) with your hands. The noise-canceling function may not work properly (Fig. C ).
On wearing the unit
- Because the headphones are of a high-density enclosure, forcing them against your ears may result in eardrum damage. Pressing the headphones against your ears may produce a diaphragm click sound. This is not a malfunction.
Others
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When you use the unit as wired headphones, use the supplied headphone cable only. Make sure that the headphone cable is firmly inserted.
-
Do not place this unit in a place exposed to humidity, dust, soot or steam, or in a car or place subject to direct sunlight.
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Using the Bluetooth device may not function on mobile phones, depending on radio wave conditions and the location where the equipment is being used.
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High volume may affect your hearing.
-
For traffic safety, do not use it while driving or cycling.
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Do not use the unit in places where it would be dangerous if you are unable to hear ambient sounds, such as at railroad crossings, train station platforms, and construction sites.
-
Do not put weight or pressure on this unit as it may cause the unit to deform during long storage.
-
Do not subject the unit to excessive shock.
-
Clean the unit with a soft dry cloth.
-
Do not expose the unit to water. The unit is not waterproof.
Remember to follow the precautions below.
– Be careful not to drop the unit into a sink or other container filled with water.
– Do not use the unit in humid locations or bad weather, such as in the rain or snow.
– Do not get the unit wet.
If you touch the unit with wet hands or put the unit in a damp article of clothing, the unit may get wet and this may cause a malfunction of the unit. -
If you experience discomfort after using the unit, stop using the unit immediately.
-
The earpads may deteriorate due to long-term storage or use.
-
If you have any questions or problems concerning this unit that are not covered in this manual, please consult your nearest Sony dealer
Optional replacement earpads can be ordered from your nearest Sony dealer.
Location of the serial number label (See Fig. D)
Compatible iPhone/iPod models
You can use the unit with only the following models. Update your iPhone or iPod to the latest software before use.
- iPhone 7
- iPhone 7 Plus
- iPhone SE
- iPhone 6s
- iPhone 6s Plus
- iPhone 6
- iPhone 6 Plus
- iPhone 5s
- iPhone 5c
- iPhone 5
- iPod touch (6th generation) (As of December 2017)
Specifications
General
Communication system: Bluetooth Specification version 4.1
Output: Bluetooth Specification Power Class 2
Maximum communication range: Line of sight approx. 10 m 1)
Frequency band: 2.4 GHz band (2.4000 GHz – 2.4835 GHz)
Operating frequency: Bluetooth 2,400 MHz – 2,483.5 MHz
NFC 13.56 MHz
Maximum output power: Bluetooth < 4 dBm
Compatible Bluetooth profiles 2) :
A2DP (Advanced Audio Distribution Profile)
AVRCP (Audio Video Remote Control Profile)
HFP (Hands-free Profile)
HSP (Headset Profile)
Supported Codec 3): SBC 4) , AAC 5) , aptX, aptX HD
Supported content protection method: SCMS-T
Transmission range (A2DP): 20 Hz – 20,000 Hz (Sampling frequency 44.1
kHz)
Included items:
Wireless noise-canceling stereo headset (1)
Micro-USB cable (approx. 50 cm) (1)
Headphone cable (approx. 1.2 m) (1)
Reference Guide (this sheet) (1)
Operating Instructions (1)
Other documents (1 set)
- The actual range will vary depending on factors such as obstacles between devices, magnetic fields around a microwave oven, static electricity, reception sensitivity, aerial’s performance, operating system, software application, etc.
- Blue tooth standard profiles indicate the purpose of Bluetooth communications between devices.
- Codec: Audio signal compression and conversion format
- Subband Codec
- Advanced Audio Coding
Wireless noise-canceling stereo headset
Power source:
DC 3.65 V: Built-in lithium-ion rechargeable battery
DC 5 V: When charged using a USB
Mass: Approx. 240 g
Operating temperature: 0 °C to 40 °C
Rated power consumption: 1.2 W
Usage hours:
When connecting via the Bluetooth device
Music playback time:
Max. 35 hours (NC ON),
Max. 40 hours (NC OFF)
Communication time:
Max. 35 hours (NC ON),
Max. 40 hours (NC OFF)
Standby time:
Max. 35 hours (NC ON),
Max. 200 hours (NC OFF)
When connecting via the headphone cable with NC ON:
Max. 50 hours
Note: Usage hours may be shorter depending on the Codec
and the conditions of use.
Charging time:
Approx. 7 hours
(About 60 minutes of music playback is possible after 10 minutes of charging.)
Note: Charging and usage hours may be different depending on the conditions of
use.
Charging temperature: 5 °C to 35 °C
Receiver
Type: Closed, Dynamic
Driver unit: 40 mm
Frequency response: 7 Hz – 20,000 Hz (JEITA) (when connecting via the
headphone cable with the unit turned on)
Impedance:
22 Ω (1 kHz) (when connecting via the headphone cable with the unit turned on)
48 Ω (1 kHz) (when connecting via the headphone cable with the unit turned
off)
Sensitivity:
97 dB/mW (when connecting via the headphone cable with the unit turned on)
98 dB/mW (when connecting via the headphone cable with the unit turned off)
Microphone
Type: Electret condenser
Directivity: Omnidirectional
Effective frequency range: 50 Hz – 8,000 Hz
System requirements for battery charge using USB
USB AC adaptor
A commercially available USB AC adaptor capable of feeding in more than 0.5 A
(500 mA)
Personal Computer
(As of December 2017)
Personal Computer with pre-installed with any of the following operating
systems and USB port:
Operating Systems
(when using Windows)
Windows ® 10 Home /Windows®10 Pro
Windows ® 8.1 / Windows ® 8.1 Pro
Windows® 8 / Windows® 8 Pro
Windows ® 7
Home Basic / Home Premium / Professional / Ultimate
(when using Mac) macOS (version 10.9 or later)
Design and specifications are subject to change without notice.
http://www.sony.net/
©2018 Sony Corporation
Printed in Malaysia
4-729-820-42(1)
References
Read User Manual Online (PDF format)
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