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 ENG
ACOUSTIC NOISE CANCELLING
Acoustic Noise Cancelling reduces unwanted noise, providing a clearer, more  
lifelike audio  performance. You can choose your noise cancellation level based on  
your listening  preferences and environment.
NOTE:  When you receive a call, the headset remains at the current noise   
cancellation level. 
ACOUSTIC NOISE CANCELLING (ANC) SWITCH
Sets the noise cancellation level.
FUNCTION POSITION DESCRIPTION
HIGH
Maximum quiet and noise cancellation across the entire 
spectrum. Best signal-to-noise ratio for radio and intercom 
communications in loud aircraft. 
MED
Consistent noise reduction across a wide range of 
 frequencies. Best for clear and comfortable noise  
cancellation in typical jet aircraft.
LOW
Best for improved interpersonal communication outside  
of the intercom in quieter environments.