BOYA BY-AP4 True Wireless Stereo Earbuds User Guide

BY-AP4 True Wireless Stereo Earbuds

BOYA BY-AP4
True Wireless Stereo Earbunds

Package Content

Earbuds x 2

Charging Cable x 1

Earplug pairs x 3

Type C Charging Cable x 1

Instruction Manual x 1

User Guide x 1

Warranty Card x 1

Carrying Bag x 1

Product Structure

Wearing Earplugs

Please choose one pair of earplugs with extra secure and appropriate size, Insert the headphones into your ear
canals as shown above, rotate it to a suitable, comfortable place.

Power ON/OFF

AUTO POWER ON/OFF:
Auto Power ON!
Open the case, and the earbuds turn on automatically
Auto Power OFF:

1. Put the earbuds back to the case and close the cover
2. Haven’t operate or connect the earbuds beyond § minutes.
3. Being in ultra-low battery status

POWER ON/OFF Manually:

1. Tum ON: long press left/right earbud for 2.5 seconds,
   left/right earbud will turn on

2. Tum OFF: long press left/right earbud for 8 seconds, left
   right earbud will turn off

Reconnect the device:
The earbuds will automatically reconnect to recent connected
device, after turn back on,

Bluetooth Pairing

AUTO ON/Bluetooth Pairing:

1. Open the case, the earbuds turn on and automatically
   pair with each other. After paired successfully, the main
   earbud prompts ‘Du’, the auxiliary earbud prompts ‘DuDu

2. Open the Bluetooth on your device, searching for the Bluetooth
   named “BY-APA” and select it to enter the paring mode,

NOTE: for simale-ear mode, take either left/right earbud
out from charging case until blue light flash per 0.5s, than
search “BY-AP4″ for connection
Earplugs Resetting/Restore Factory Setting

NOTE: This mode is for the pairing failed condition of
earplugs only.

1. Disable or clear “BY-APA” from the Bluetooth list on your
   device.

2. after power off, long press and hold both earbuds for 12
   seconds until the indicators glow solid red, indicating the
   Factory Setting is restored successfully.

3. Put the earbuds back to the charging case and close it. Open
   the case again, the earbuds will automatically pair with each
   other, The indicators glow solid blue for 2.5 seconds, then
   flash blue light every 0.5 seconds which means binaural
   mode is paired successfully.

Charging Guidance

Use the charging case for charging:
Place earbuds back into charging case,
close cover,. the earbud will automatically
turn off, the left end/right end indicators
flash 5s and then tum off, respectively
indicates the left/right earbuds is charging.

Use wireless charger to charge the case:
the indicators on the charging case flash
‘white in sequence. When fully charged,
the indicators glow solid white,

Use the USB Type-C charging cable to
charge the case:
The indicators on the charging case flash

‘white in sequence. When fully charged,
the indicators glow solid white.

Basic Operation

1. Play/Pause:

2. ouble tap letvight earbud
   Volume + / Volume ~
   Volume +: Long press left earbud for 1.55
   Volume ~ Long press right earbud for 15s

3. Previous Track / Next Track
   Previous Track: Triple press let earbud
   [Next Track: Triple pres right earbud

4. Wake Up Voice Assistant
   Press left/right earbud 4 times

5. Calling Operation
   ‘Answer/Hung Up: Press left/right earbud
   Reject: Long press left/right earbud for 1.55

Indicator Light

Sound Prompt

“ Your headset is connected “

Bluetooth Disconnected| “ Disconnected “
Low Battery| “ Battery low”
Incoming Calling|

“ Mobile phone with ringtones “

Reject a Call| Call reject ”
Over Distance Connected| “ Link lost”
Restore Factory Setting| “ DuDuDuDu
Maximum Volume| “ DuDu”
Minimum Volume| “DuDu”

Product Parameters

Earbuds: (50%volume) Approx 6 hrs

Charging case:| Approx 16 hrs
Charging Time:|

Earbuds: Approx 1.5 hrs Charging case: Approx 2 hrs

Bluetooth Profile:|

HSP/HFP/A2DP/AVRCP

Weight:|

Earbuds: 4.7g (0.2 oz)
Charging case: 40g (1.10z)

The above specification is sourced from the BOYA laboratory, and the actual specification depends on the product or other factors. If you have any doubt, please contact our support team

Hearing Protection

1. Do not use it too long under high volume as it may damage your hearing
2. Do not use too high volume in case surrounding sound cannot be heard

Safety Precautions

1. Please avoid heavy drop or bump
2. Please use original or qualified charging cable.
3. Do not disassemble or modify the earbuds yourself to prevent damage or danger.
4. Please avoid the earbuds from water contact and keep it dry
5. Please keep the earbuds away from children as it may damage their hearing
6. Do not use earbuds in lightning weather to prevent accidents
7. Wipe with a soft, dry cloth to avoid irritating chemicals or strong detergents.
8. Do not use this product in severely hot/wet/corrosive environments.

Contact Us

1. Contact number: 4006131096.
2. Official website: www.jiayz.com.
3. Address: Building A16, Silicon Valley Power Intelligent Terminal Industrial
   Park, Guanlan Dafu Industrial District, Shenzhen

Common Problem

Q: The earbuds cannot turn on automatically?
A: 1 Check if the charging case has power.
2 Check if the earbuds are low powered
3 Check if the earbuds can be turned on manually
Q: Bluetooth signal is not stable?
A: 1 Check if there’s electromagnetic interference surrounded
2 Check if the earbuds are too far from device
3 Restart the phone, to prevent the problem of mobile phone signal
instability.
4 Turn off the wifi and try again
Q: How to tell if the earbuds are fully charged?
A: 1 The earbuds charging time is about 1 hour.
2 When fully charged, the earbuds blue light will steady for 7s and then
tum off
Q The earbuds cannot be charged?
A:1 Make sure the earbuds charging contacts are clean
2 Whether the earbuds are placed in the charging case.
3 Whether the charging case has sufficient power.

Q: How to adjust the earbuds volume?
A: 1 Long press the left earbud for 1.5s to increase volumeLong press left
earbud for 1.5s to decrease volume
2 When you adjust the volume, most Android phone won’t display the
change, you need to feel the volume change yourself(There’s 15 grades
volume in total)
Q How to connect earbuds with device?
A:1 Tum on the earbuds and wait until blue indicator lights flash every 0.5s,
which means earbuds is pending for connection
2Turn on bluetooth function from your device and connect bluetooth
named “BY-AP1″
Q: No sound from the earbuds?
A: 1 Check if the earbuds are connected to the mobile phone, and whether
the media audio is selected,
2 Check if the earbuds volume is adjusted to the mute state.
3 Check if there’s electromagnetic interference surrounded or if the
earbuds are too far from device.

Warranty Service

12 Month Quality Warranty
Lifetime Technical Service Support

Warranty Description

1. Within 1 year since the customer purchase this product, we will provide free
   warranty service in case the damage is caused during normal use

2. Under the following circumstances, the free warranty will be refused,We will
   however provide free repair service but charging fee for parts

A, The product has been mishandled, inadvertently used, or damaged
due to irresistible movement,
B, The product is disassembled and repaired privately without the
company’s permission.
C. The head unit is in the form of debris or impact, which causes the
diaphragm to deform, crush, and soak for a long time,Damage to the
casing, deformation, etc.
D. The using time exceed 1 year

3 The free service provided by this warranty does not include product
accessories and other packaging, gifts products and so on.

Read User Manual Online (PDF format)

Read User Manual Online (PDF format)  >>

Download This Manual (PDF format)

Download this manual  >>