Motorcycle MP3 with FM radio 1.Security alarm with MP3,FM radio function 2.Support USB/SD/TF/mmc, ... up to 8 GB 3.remote control Motorcycle MP3 with FM radioModel number:MK6141.Security Alarm with MP3, FM Radio function.2.Security ... Alarm Function with remote control, siren at 120 dB, Anti-Hi jacking,3. ...