When you are within 5 meters of the vehicle, the anti-theft system will automatically raise. When you are outside of the range of 5 meters from the vehicle, the anti-theft system will automatically turn to anti-theft status. (Note: In the presence of electromagnetic interference, PKE sensor function may be invalid, this time press the remote control to unlock) Function: PKE function: Two-way Anti-theft alarm Cutting line function Motion sensor alarm Security alert, 24-hour alert real-time Keep your motorcycle away from everyday thieves Weatherproof, state-of-the-art alarm, powerful r oacute;g Remote sensing remind distance: 300M Engine start Funtion/Remote start system/stop Automatic arming, prevent false disarming Specification: Color: as picture Horn alarm sound size: 105-125 DB Remote control frequency: 315.5 or 433MHZ Working voltage: 12 plusmn; 3V Host shell: waterproof design, beautiful appearance, elegant. Package Included: 1x Motorcycle Alarm Host Machine 2x 2 Ways Remote Control (Batteries Not Included) 1x Alarm Horn 1x Adhesive Pad 1x User Manual