This is 6-key R/C bluetooth MP3 with FM, bluetooth, recorder, USB flash drive, SD card; 3.7V 5V 12V input; supports direct switch of external signal; supports Bluetooth 3.0 EDR, switch of USB/recorder/Bluetooth/FM; with built-in MP3 / WMA decoding chip; supports USB, SD, MMC music play; supports USB switch, previous, next, fast forward, fast backward, volume adjustment, play / pause, stop; supports Bluetooth wireless control previous, next, volume adjustment, play / pause; supports FAT16, FAT32 system; supports MP1 Layer3, MP2 Layer3, MP3 Layer3 music, 32~320kbps MP3.