With FM radio, Bluetooth, recording; Support U disk, SD card; 3.7V / 5V / 12V voltage input; Support external signal switch directly; Support Bluetooth 3.0 + EDR; Support USB / recording / Bluetooth / FM switch; Module included MP3 / WMA decoding chipset; Support USB, SD, MMC card playing; Support FAT16, FAT32 file system; Support MP1 Layer3, MP2 Layer3, MP3 La; Radio frequency: 87.5~108.0MHz