You can go to the computer to set the playback mode, there are six different modes of playback instructions tutorial: first turn on the switch - connect to the computer - pop up the hard drive - open the hard drive - click on the "config.txt" configuration file.
IO=01: Six playback modes:01-06
01:Key press interruptible（Press to start playing, and during playback, press play again to play the next track.）
02:Key presses are not interruptible（Press once to start playback, during playback in the press invalid, the current song ends automatically transition to the next song.）
03:Push button hold cycle（Click the play button to loop the song; release the button to stop playing immediately.）
04:Loop cannot be interrupted(holding the button, play in a loop. After releasing the button, finish playing the current music and stop.)
05:Play/pause(Press once to play, press again to pause, and press again to resume from the paused point.)
06:Play/stop(Press once to play, and during playback, press again to stop play.)

Note:
1. the audio file must be MP3 format, no file name requirements.
2. the "CONFIG.TXT" file in the U disk should be retained, is used to set the playback modes.
3.Switch must be turned“ON"when connecting to the computer.
4. Built-in music,can be connected to the computer to delete.