Check the setting of answering method on your cell phone and confirm if need some setting when connecting the Bluetooth device.

What should I do if the computer says they need a driver or transmitter to connect the earbuds?

Here are some methods for your reference.·Download a Bluetooth receiver to connect(in the computer settings)·Kindly check if your computer’s Bluetooth version supports Bluetooth 5.0

How to adjust the volume by earbuds?

Long press L or R earbud to adjust the volume while playing music.# R earbud Volume +# L earbud Volume -The volume adjustment is not available when it`s connected to a TV and computer.

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TOZO NC9 Pro

Smart Touch Screen,Stereo Bass, 6 Mics ENC Clear Call Ear Buds,Dual Device Connection,60H, Bluetooth 6.0, Fast Charging,Black

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FAQs

: Check the setting of answering method on your cell phone and confirm if need some setting when connecting the Bluetooth device.
: Here are some methods for your reference.
·Download a Bluetooth receiver to connect(in the computer settings)
·Kindly check if your computer’s Bluetooth version supports Bluetooth 5.0
: Long press L or R earbud to adjust the volume while playing music.
# R earbud Volume +
# L earbud Volume -
The volume adjustment is not available when it`s connected to a TV and computer.