... SD card 2.support mp3,wma 12V Car/Motoryclce/motor bike/scooter audio amplifier with FM radio,support USD,SD card EQ ... effect: Flat/Jazz/Rock/POP/Class ect 1.FM radio:87.5MHz--108MHz2.Support mp3,wma3.Support USB,micro ... control working style is as below drawing: 12V Car/Motoryclce/motor bike/scooter audio amplifier with FM radio,support USD,SD card