42
GPSmile55
Hot Key
Press the [Hot key] to enter the “Volume” and ”LCD Brightness” screen.
1. Control the volume
directly with the
“speaker” icon. There
are four levels of
volume.
Select the “MUTE”
icon to mute the
Volume.
2. Control the LCD
Brightness with “light bulb” icon. There are ten levels of brightness.
Select the “AUTO”
icon. The LCD
Brightness will be
changed
automatically to the
suggested value
according to the
environment.
Hot key
