Function: 1. Anti-theft, anti-rabbing dual function selection 2. Small size, simple installation and strong concealment 3. Strong compatibility, can be installed in vehicles that have been equipped with an anti-burglary alarm. 4. The detection distance can be adjusted freely. Suitable for any 12V car. 5. When the vehicle does not detect induction, the car cannot be started when the door is opened. 6. When the vehicle is started and the vehicle does not detect induction, the vehicle will automatically shut down and cannot be restarted. 7. Emergency release mode. It can choose the car washing or maintenance mode. 8. When the internal battery voltage of the proximity card is too low, an audible signal will appear when the vehicle is started. 9. 2,4 GHz frequency, less interference and energy saving. 10. The proximity card uses a high-capacity CR2032 battery, which is built into it. Specification: Item Type: Immobilizer Color: shown as picture Induction detection range: approx. 2-8 meters / 6,56-26,24 feet List of packages: 1 x Anti-Theft Device 2 x Sensor 2 x Keychain 4 x Drawstring 1 x User Manual