MPMan BT182PAK - Key Function

Page 6
[Backward/Forward] : move up/down or right/left.
[M] :
short press to go back to previous menu and long press to show sub-menu option.
[▶] :
short press to enter into menu, play or pause and long press to turn off device.
[V] :
press to show volume control and use [Backward/Forward] key to adjust volume.
Key function