Features: 1. Enables remote door lock and unlock functionality for your car with this central locking kit, providing convenience and security. 2. Includes 2 remote controls with 2 keys each, allowing manual triggering of unlocking and locking. 3. Equipped with speaker output and turn signal output functions, along with an LED indicator for enhanced user experience. 4. Features a learning code remote controller that can be used to open the trunk, with a service life of up to 2 years. 5. Constructed with pure copper wire to ensure stable signal transmission and reliable performance. 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. Manual trigger to unlock and lock 6. Learning code remote controller 7. Remote trunk release 8. Pure copper wire Battery: Button Battery (Built-in) Model: CR2025 Capacity: 150mAh How to Use: 1. If the vehicle is already equipped with a central door lock system and the driver’s door has an electric motor installed, verify the wiring compatibility. 2. If compatible, follow the wiring diagram in the installation instructions for proper connection. 3. Install and begin use. Note: Please note that new and old versions of this product may be shipped randomly. Ensure you are comfortable with this before placing your order.