1. Suitable for any 12V car installation. 2. Strong compatibility (can be installed on vehicles that have been equipped with burglar alarms). 3. Induction detection range 2-8 meters. 4. The sensing distance can be adjusted freely 5. Anti-theft function: When the vehicle does not detect the proximity card, the car cannot be started after opening the door. 6. Anti-grab function: When the vehicle is running and the vehicle does not detect the induction, the vehicle will automatically turn off and cannot start the vehicle again. 7. Emergency release 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 prompts after starting the vehicle). 9. Small size, simple installation and strong concealment. 10. With 2.4GHz frequency, less interference and power saving. 11. The proximity card uses a large capacity CR2032 battery. Specifications: Product Name: Car Immobilizer Operation Voltage: 3V Operation Frequency: 2.4GHZ Effective Receiving Range: 2m Operation Voltage: 123V Operation Frequency: 2.4GHZ Colour:black Material:plastic Package Contents: 1 * Car Engine Lock Host 2 * RFID Sensor Rings 4 * Fastening Lines Note: 1.The instruction is not included in the package.Professional installation is Highly Recommended. Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.