EN
5.Press and hold PWR to turn on the device. The unit will beep with the LCD displaying all symbols for 1 second.
6.Use 
or 
to increase or decrease volume, respectively. The VOL number will show on the LCD accordingly.
7.To turn the device off, press and hold PWR until the unit beeps and the LCD goes blank.
BASIC FUNCTIONS
NOTE: The battery indicator will flash to indicate low battery power.
8