motorcycle radio fm mp3 fm radio,mp3 player, security alarm usb, sd card slot to play ... wireless remote Main function: MP3 player+ FM radio+Security Alarm system+ Wireless remoteUsed for motorcycle, scooter, motor tricycle, auto rikshawWith USB, SD ... WFM radio range: 88Hz-108HzOutput Frequency Range: 100HZ~6KHz (315Hz,+/-0.5dB)Remote Distance: Open Areas ≥100m ( Open area ) motorcycle radio fm mp3 ...