Features 1. This central locking kit enables car door lock and unlock via remote control. 2. Includes 2 key fobs, supports manual trigger for unlocking and locking. 3. Equipped with speaker output function, turn signal output function and LED indicator. 4. Learning code remote controller supports trunk opening, service life reaches 2 years. 5. Adopts pure copper wire to ensure 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. For cars originally equipped with central door lock system and electric motor installed on the driver's door, check whether the wiring is compatible with the product. 2. If compatible, wire according to the wiring diagram in the installation instructions. 3. Install and use.