1. Player mode selection

2.back/REW,Under U disk or SD/MMC card playing state,press the key to switch to previous program, hold the key for over 2 seconds to seconds to select program quickly backward,the player may starting from current program quickly select program and 1 programs may be searched every 0.2second.

3.Next/FF Under U disk or SD/MMC card playing state,press the key to switch to Next program: hold the key for over 2 seconds to seconds to select program quickly forward,the player may starting from current program quickly select program and 1 programs may be searched every 0.2second.

4..Under SD/MMC card playing state,insert the U disk,the player automatically switches to U disk playing state Under U disk playing state ,insert the SD/MMC card,the player automatically switches to SD/MMC card playing state.

5..press the key to increase the volume

6.. press the key to drop the volume

7..Press the key to choose a variety of music effect

8.Repeat , Click to repeat a song, double click, repeat all of the songs

9. Automatic frequency

mini reader with usb,sd fm ,remote control