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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