Motorola BRUTE I686 - Manual (Page 72)

68 main attractions
dual microphone noise
cancellation
The Dual Microphone Noise Cancellation
feature improves call audio quality by
removing ambient noise around you. It
provides a cleaner clearer sound to the person
you are calling.
Note: Dual Microphone Noise Cancellation is
turned on by default. Covering the noise
cancellation microphone, located right next to
the camera, may result in poor audio quality.
To turn off the Dual Microphone Noise
Cancellation feature, press / >
u >
Phone Calls > Noise Cancellation > Off.
To activate the feature, select On instead of Off.