1. RFID engine lock 2. lock and unlock the car engine automatically 3. anti-hijacking intelligently 4. circuit cut off intelligently 5. two way transmit the car engine be locked automatically and could not be started beyond 2 meter approch to the car within 2 meter, the engine automatically unlock only put the remote inside pocket, the engine automatically lock and unlock anti-hijacking mode, intelligent circuit cut off without the remote, even use the car key can not start the engine emergency release: if the remote lose or the remote is with low power, press the reset button for 3 times and keep press the button at the third time until the buzzer of the main unit 3 tims very easy to install Colour:Black Material:Plastic Package Contents: 1 * Engine lock kit 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.