1Anti-theft, anti-robbing dual function selection 2Small size, simple installation and strong concealment 3Strong compatibility, can be installed in vehicles that have been equipped with burglar alarms. 4The sensing distance can be adjusted freely. Suitable for any 12V car. 5When the vehicle does not detect the induction, the car cannot be started after opening the door. 6When the vehicle is running and the vehicle does not detect the induction, the vehicle will automatically turn off and cannot be started again. 7Emergency release mode. Can choose car wash or maintenance mode. 8When the internal battery voltage of the proximity card is too low, the buzzer will prompt after starting the vehicle. 9With 2.4GHz frequency, less interference and power saving. 10Proximity card uses large capacity CR2032 battery, which is built-in it. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Dadangjia