... 2.support mp3,wma 12V Car/Motoryclce/motor bike/scooter audio amplifier with FM radio,support USD,SD card EQ effect: ... .1subwoofer1pcs15*30cmor 15*40cm2external speaker2pcs4inch waterproof,with or without plastic cover3speaker extended line2pcs50cm4 wire control1pc 2.5m long,waterproof5 ... as below drawing: 12V Car/Motoryclce/motor bike/scooter audio amplifier with FM radio,support USD,SD card