English
3 To make a call: When you double click on the "M" button on the chin strap,
you will call the last person in your call history. You will need to operate with
your mobile phone if you want to call a different contact (if you have a voice
assistant on the mobile phone, you can hold the "M" button for 2 seconds to
activate the voice assistant).
4 Hang up a call: Press the "M" button on the chin strap or use your mobile
phone to hang up.
5 Volume control: During a call or while listening to music, the volume of the
speaker can be adjusted. Holding the + or - button to increase or decrease the
volume. Music and phone volume may not be at the same level as they are
adjusted separately.
6 Music playback: While playing music, press the + or - button once to
play the next or previous song.
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AUDIO
Only PRO model
On / off switch
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