... Two Way Motorcycle Alarm System ,learning code,433mhz, small motorbike alarm control box ,CE approved,waterproof main unit,with back battery,anti-cutting wire ... CD-MT170Motorcycle Alarm System Basic Feature:1.Learning code design.;2. help calling; Anti-hijacking;3.silent arm;4. Remote start ... Voltage:250 Max VPP;3.Working Frequency:315mhz or 433mhz;4.Static Current:<3mA;5.Volume of Alerting= or >120dB ...