Usage Tips:Features: 1.Your car can realize remote door lock and unlock with this central locking kit, convenient and safe to use. 2.Comes with 2pcs 2?key remote control, manually trigger unlocking and closing. 3.With speaker output function and turn signal output function, LED indicator gives you a better experience. 4.Learning code remote controller, can be used to open the trunk, service life can get to 2 years. 5.The using of pure copper wire can ensures more stable signal transmission and reliable function. Specification: Item Type: Remote Central Lock Kit Material: ABS Voltage: 12V Remote Control Distance: Approx. 100m/109.4yd Remote Control Frequency: 433.92 Mhz Applicable Life: 2 Years Main Function: 1. Remote control unlock/lock 2. Siren output 3. Turn Signal Output 4. LED indicator 5. Manually trigger to unlock and close the lock 6. Learning code remote controller 7. Remote Trunk Release 8. Pure Copper Wire Battery: Button Battery (Built-in) Model: CR2025 Capacity: 150MHA How to Use: 1. If the car is initially equipped with a central door lock system, and the driver's door has been installed with an electric motor, you can check whether the wiring is suitable. 2. If appropriate, follow the wiring diagram in the installation instructions for wiring. 3. Install and use. Note: Please note that the type and old type of this product will be sent randomly, and make sure you will not mind before ordering.