Instruction Manual

MB Pro1 | MB Pro 2 | 9
Product overview
Audio button: Volume adjustment
Move
the
button
Function Page Beeps
During an active call:
Increases/reduces the speaker volume
During music reproduction:
Increases/reduces the audio volume
In idle mode
(no active call or music reproduction):
Increases/reduces the volume for the ring tone,
the beeps and the voice prompts
15 –
Audio button: Mute function
Press
the
button
Function Page Beeps
During an active call:
Mutes/unmutes the headset‘s microphone
19
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Changes the direction of the Audio button‘s
volume up/down function (MBPro2: and
changes the left and the right stereo channel) –
voice prompt “Swap volume keys“
16 –
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MBPro2: During an active call:
Activates/deactivates the room experience
–