Features: 1.Multiple Compatibility: This universal alarm is suitable for DC and AC motorbikes. The anti-theft system will automatically lock after the motorbike is turned off and the electric door lock is turned off. 2.Motorbike Anti-theft: High voltage resistant and waterproof. Ultra-low power consumption does not affect battery life. When the motorbike is started at the end of the ID authentication the engine will not start. 3.Easy to Operate: Easy to install and remove convenient to use. This ID card lock can be installed in a concealed place on the motorbike. The wires can be connected to the pins of the electronic door lock or other corresponding places. 4.How to Use: Before starting the engine of the motorbike identity verification must be carried out first After opening the electric door lock the owner must use the ID card carried to induct the corresponding position of the hidden installed sensor (within 20mm distance) the LED indicator light will be on before starting the engine. 5.After-sales Service: If you have any problem please contact us immediately we will help you solve it as soon as possible. Specifications: Material: ABS+metal Product Size: 7*6.5cm Notice: 1.Actual color may be slightly different from the image due to light effect. 2.Please allow 1-3cm deviation due to manual measurement. includes: 1 Set of Motorcycle Anti-theft ID Card Lock "