motorcycle radio fm mp3 fm radio,mp3 player, security alarm usb, sd card slot to play ... music wireless remote Main function: MP3 player+ FM radio+Security Alarm system+ Wireless remoteUsed for motorcycle, scooter, motor tricycle ... : DC12VPower Output:2*15W / 2*20WPower Dissipation:15W / 20 WFM radio range: 88Hz-108HzOutput Frequency Range: 100HZ~6KHz (315Hz,+/-0.5dB ...