Support BT connection, and the audio can control the last/next song and volume of the music player, and can transmit sound when playing games and watching movies Digital MP3 player: support U disk, memory card, no need to switch, automatically read audio file playback after inserting memory card/U disk With radio function, FM high-sensitivity stereo digital receiving function Built-in rechargeable lithium battery, which can be used in mobile after charging Using a 3W speakers, combined with scientific acoustic structure design