OPERATION
Convenient Sound Controls
Adjusting the volume and muting the sound
To adjust the sound volume
Adjust the sound volume with the VOL 
buttons. Press the VOL
button to decrease the sound.
Press the VOL
button to increase the sound.
VOLUME 50
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To mute the sound
The muting function is convenient when you need to pay attention to surrounding sounds, answer a phone call, receive a visitor, etc.
1. Press the MUTE button to mute the sound.
MUTE
2. To restore the sound, press the MUTE button again or VOL 
buttons.
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