Models with Hands-free system

Press this button for more than 1.5 seconds if you wish to immediately cut the volume to zero.

The audio display will show “MUTE”.

If you press the button for more than 1.5 seconds again, the original sound volume will return and “MUTE” turns off.

    See also:

    Specifications
    These specifications are subject to change without notice. ...

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    Auto-dimming function
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