Transcend Information T sonic 310 - Manual (Page 8)

5
Fast Rewind
Press and hold the TouchPad [A] to Fast-Rewind a track.
Increase Volume
Slide up [B to A] on the TouchPad to increase the volume level.
Decrease Volume
Slide down [A to B] on the TouchPad to decrease the volume level.
Lock
When the Lock switch is set to the Locked position all of player’s functions are disabled.