BOYA K-buds True Wireless Earbuds Instruction Manual

: June 5, 2024
: Boya

Table of Contents

BOYA K-buds True Wireless Earbuds
At A Glance
Package Contents
Turning the earbuds on/off
Pairing
Wearing the earbuds
Basic Operations
Earbuds Resetting
Indicator Light
Sound prompt
Product Parameters
Warning
Contact Us
Common Problems
Warranty
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

BOYA K-buds True Wireless Earbuds

Thank you for purchasing the K-buds True Wireless Earbud!

At A Glance

Earbud Tip
Microphone
Earbud Indicator
MFB (Multi-Function Button)
Earbud Charging Contact
Case Indicator
Type-C Charging Port

Package Contents

Charging Case x 1
Earbud x 2
Earbud tips (pairs) x 4
Storage Bag x 1
User Manual x 1
Type-C Charging Cable x 1
Warranty card x 1

Tip: fully charge the earbuds and charging case before first use.

Turning the earbuds on/off

Automatically:

The left/right earbud will automatically turn on after being removed from the charging case.
The left/right earbud will automatically turn off after being placed back into the charging case, with the red light facing up.

Manually:

Press and hold the MFB button on the left/right earbud for 2.5s to turn on each earbud separately.
With the device paired, press and hold the MFB button on the left/right earbud for 8s to turn off each earbud separately.
Without a device paired, press and hold the MFB button on either the left or right earbud for 8s to turn off both left and right earbuds.

Tips:

Both the left and right earbuds will automatically turn off after 5 mins if they have not been paired.
The left and right earbuds will automatically turn off if the battery is too low.

Pairing

Double earbuds mode:

The earbuds will automatically pair with each other after being turned on.
When pairing is successful, the “main earbud” makes the sound “Du” while the “auxiliary earbud” makes the sound “DuDu”(“main” and “auxiliary” earbuds switch automatically). The blue light on each earbud will flash every 0.5s until the Bluetooth device is connected.
Turn on the Bluetooth function on your device and connect to the Bluetooth device named “K-buds”.

Single earbud mode

Turn on either left or right earbud and wait until the blue light flashes every 0.5s.
Turn on the Bluetooth function on your device and connect to the Bluetooth device named “K-buds”

Reconnect:
The earbuds will automatically connect to the last connected device after being turned on again.

Wearing the earbuds

BOYA K-buds True Wireless Earbuds fig 2

For your comfort, 2 different sizes of earbud tips are included.

Basic Operations

Play/Pause:
Double-tap the MFB button on the left/right earbud.
Volume +/Volume :
Volume -: Press and hold the MFB button on the left earbud for 1.5s. Volume + : Press and hold the MFB button on the right earbud for 1.5s.
Previous/Next Track:
Previous Track: Triple press the MFB button on the left earbud.
Next Track: Triple press the MFB button on the right earbud.
Wake Up Voice Assistant:
Press the MFB button on the left/right earbud 4 times.
Calling Operation:
Answer/Hang Up: Press the MFB button on the left/right earbud. Reject: Press and hold the MFB button on the left/right earbud for 1.5s.

Earbuds Resetting

While the earbuds are off or in the charging case, press and hold the MFB button on the left/right earbud for 12s. This will prompt the following sequence: “Power On”, “Pairing”, “DuDuDuDu”. In turn, the earbud light will turn on and be steady for 2.5s and then turn off, indicating that the earbuds have successfully been restored to factory settings.
Place both earbuds back in the charging case, close the cover and take them out after a short period. The earbuds will turn on, automatically pair in double earbud mode, and search for devices to pair with (the red/blue light will be steady for 2.5s, then the blue light will flash every 0.5s).

Indicator Light

Power on	Blue light on earbuds steady for 2.5s
Power off	Red light on earbuds steady for 2.5s
Connection pending	Blue light on earbuds flashes every 0.5s
Reconnection pending	Blue light on earbuds flashes twice every 4s
Successful connection	Red/blue light on earbuds steady for 1.5s
Connected	Blue light on earbuds flashes every 14s
Incoming call	Blue light on earbuds flashes twice every 4s
Earbuds charging	Red light on earbuds/blue light on charging case steady
Earbuds fully charged	Blue light on earbuds steady for 7s and then turns off
Earbuds low battery	Red light on earbuds flashes every 14s
Charging case charging	Red light on charging case flashes
Charging case fully charged	Red light on charging case steady

Sound prompt

Power on	“ Power on ”
Power off	“ Power off ”
Connection pending	“ Pairing ”
Successful connection	“ Your headset is connected ”
Disconnect	“ Disconnected ”
Earbuds low battery	“ Battery low ”
Incoming call	“ Mobile phone with ringtone ”
---	---
Reject Call	“ Call reject ”
Connection out of range	“ Link lost ”
Restore to factory setting	“ DuDuDuDu ”
Maximum Volume	“ DuDu ”
Minimum Volume	“ DuDu ”

Product Parameters

Bluetooth Name	K-buds
Bluetooth Version	V5.0
Frequency Range	20HZ-20KHZ
Bluetooth Range	≥10m
Earbuds Battery	50mAh*2
Charging Case Battery	400mAh
Charging Input	DC5V/1A
Music Play Time	≈6 hours(Earbuds) (50% Volume)

≈16 hours(Charging case)

Charging Time| ≈1 hours(Earbuds)

≈1 hours(Charging case)

Bluetooth Profile| HSP/HFP/A2DP/AVRCP
Weight| 5g(Earbuds), 32g(Charging case)

Warning

Do not disassemble, repair or modify the product, as it may catch fire, cause an electric shock, or even completely damage the product.
Do not keep the product in adverse cold (below 0ぎ) or hot (above 45ぎ) temperatures.
Do not use the product in thunderstorms, as it may cause the product to work improperly and increase the risk of electric shock.
Do not wipe the product with oil or other volatile liquids.
Do not use the earbuds for too long, as this can cause hearing damage. Only use original charging cables, such as:
pe-C (1-2A) adapter cable, Car charging (1-2A) adapter cable.
Please only use the original mobile phone charging cable or the USB port on a computer. THe earbuds do not support adapters with an output current over 2A, as it may cause damage to the product,.

Contact Us

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

Common Problems

Q: The earbuds will not turn on automatically
A: Check if the charging case has power.
- Check if the earbuds have low battery.
- Check if the earbuds can be turned on manually.
Q: Bluetooth signal is not stable?
A: Check if there’s nearby electromagnetic interference.
- Check if the earbuds are too far from the device.
- Restart the phone, as the mobile phone signal may be unstable.
- Restart the Wi-Fi and try again.
Q: How do I know if the earbuds are fully charged?
A: The charging time for the earbuds is approximately 1 hour.
- When fully charged, the earbuds’ blue light will be steady for 7s and then turn off.
Q: The earbuds will not charge?
A: Make sure the earbuds’ charging contacts are clean.
- Check whether the earbuds are placed in the charging case properly.
- Check whether the charging case has sufficient power.
Q: How do I adjust the volume with the earbuds?
A: Press and hold the MFB button on the left earbud for 1.5s to decrease the volume.
Press and hold the MFB button on the right earbud for 1.5s to increase the volume.
- When you adjust the volume, most Android phones won’t display the change. You need to hear the volume change yourself (there are 15 volume levels in total).
Q: How do I connect the earbuds to a device?
A: Turn on the earbuds and wait until the blue indicator light flashes every 0.5s, which means the earbud is pending for connection.
- Turn on the Bluetooth function on your device and connect to the Bluetooth device named “K-buds”.
Q: No sound from the earbuds?
A: Check if the earbuds are connected to the mobile phone, and whether audio is selected.
- Check if the earbuds are muted.
- Check if there is nearby electromagnetic interference or if the earbuds are too far away from the device.

Warranty

The warranty only extends to issues that emerge during normal use.
Under the following circumstances, the free warranty will be refused.
- A. The product has been mishandled, inadvertently used, or damaged due to irresistible movement.
- B. The product has been 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.

NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection.

harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on again, the user is encouraged to try to correct the interference through one or more of the following measures:

Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment to an outlet on a circuit different from that to which the receiver is connected.
Consult the seller or an experienced radio/TV technician for help.