User`s manual

Setting 39
Function Explanation
Volume Adjust the speaker volume;
enable/ disable sounds for tap;
set startup music.
Backlight Adjust the brightness of touch screen backlight;
set the interval of auto backlight off under power supply.
Language Select a system language.
Date & time Set the system date, time, and time zone.
Calibration Calibrate the screen when position deviation occurs.
System info Display system information including ROM version,
software version, OEM version, platform ID and device
ID.
FM
Transmitter
Transmits audio signals of the navigator to the radio set
via frequency modulation.
USB setting Set the data transmission mode between the navigator and
computer.
Navigation
path
Select a navigation path for the navigator.
Factory reset Restore the factory settings.
7.2 Volume
Tap in the setting interface to enter the volume setting interface as
shown below.