1.Lock button 
- Disables buttons to prevent accidental operation.
2.
3.SD/MMC Socket (card slot) - Insert an SD/MMC card to have extra memory.
4.Battery Box - Install one size AAA battery (alkaline or NiMH).
5.Hanging strap wire Hole - To hang the player to the earphones and conveniently carry these on your neck.
6.Earphones Jack - Connects earphones or a home theater or any amplifier etc. with a 3.5mm stereo plug.
7.Mode Switch - has many functions:
∙Turn right: NEXT 
- Skips to the next track. Turn right and hold to scan forward.
∙Turn left: PREV 
- Skips to the previous track. Turn left and hold to scan reverse.
∙Pushing the MODE Switch
(1). During play, press the MODE switch to select REPEAT ONE or REPEAT ALL.
(2). During play or in stop mode, press and hold the MODE switch to enter the Menu mode.
(3). In stop mode, press the MODE switch to select the play mode:
REPEAT ONE, REPEAT ALL, SHUFFLE, SHUFFLE & REPEAT, or PREVIEW.
8.Volume + Button - Press to increase the volume.
9.Volume – Button - Press to decrease the volume.
10. Play/Pause 
Button - Start or pause or stop playback.
11.Power Button 
- Press and hold to turn the player on or off.
12. LCD Screen - Displays current status of the player, details on page 7.
13.
14. Back Cover - Remove back cover to install the AAA battery or an optional SD/MMC memory card.
6IB-MP456-WC-E-030206