55GB
Additional information

Turning the operating sound on or off

The operating sound for the operation buttons on
the main unit is set to “On” as the factory setting.
You can turn this sound on or off.
1
Press SETTINGS to enter the
settings menu and select “Touch
Key Settings” - “Beep Settings.”
2
Select “On” ( ) or “Off.”
( : Factory setting)
SETTINGS
M/m/ENTER