User Guide

15
Switching NoiseGard on/off
To switch the NoiseGard active noise compensation on or off:
Press the ON/OFF button  for approx. one second.
When NoiseGard is switched on:
–the LED  lights up red and
– you can listen to music and make telephone calls at the
same time.
Fail safe operation When the batteries are completely discharged, NoiseGard
automatically switches off. RT traffic (e.g. ATC) and
intercom will still be heard through the headphones.
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