1. Suitable for any 12V car installation. 2. Strong compatibility (can be installed on vehicles that have been equipped with anti-theft alarms). 3. Induction detection range of 2 to 8 meters. 4. The detection distance can be adjusted freely. 5. Anti-theft function: When the vehicle does not detect the proximity card, the car cannot start after opening the door. 6. Anti-grabbing function: When the vehicle is running and the vehicle does not detect the induction, the vehicle will automatically shut down and cannot restart the vehicle. 7. Emergency unlocking mode (function selection: car wash, maintenance mode). 8. Low voltage alarm prompt function (when the internal battery voltage of the proximity card is too low, the buzzer alarm will sound after the vehicle is started). 9. Small size, simple installation and strong concealment. 10. With 2.4GHz frequency, less interference and energy saving. 11. The proximity card uses a large capacity CR2032 battery. Specifications: Product Name: Car