Support Bluetooth3.0EDR Support USB/SD/Bluetooth/FM/LINE automatic switching. MP3/WMA module contains songs decoding chip. Support USB, SD, MMC card to play. Support USB/ SD card switching, a song, the next song, fast forward, rewind, adjust the volume, EQ, play / pause, stop, single repeat, mute, shutdown, direct songs. Support Bluetooth control a song, the next song, adjust the volume, EQ, play / pause, mute, shutdown. Supports FAT16, FAT32 file system Support MP1 Layer3, MP2 Layer3, MP3 Layer3. Support power-off memory function.