4
The buttons have different functions for press and press hold.
Key Control and Interface:
MENU
Make your
selection
Back
Scroll through songs,
video & photos.
Set volume down.
NEXT
Scroll through songs,
video & photos.
Set volume up.
Play/Pause
Play & pause for
songs, video & photos
Volume
Press and hold for volume
Earphone
USB
Lock/On/Off
(On/Off is a slide
and hold function)
(Also functions as an on/off :
press and hold)
ON
OFF
LOCK