Car Smart Key Keyless Entry LCD Touch Screen Remote Control Key Anti Lost Car Key Fob for One Button Start Car Red Item Type: Car Smart KeyScreen Size: Approx. 2in / 5.08cm Material: Zinc Alloy Screen Resolution: 240x320 Connection Mode: Bluetooth 5.0 Language: Default English Battery Type: 800mAh Lithium Battery (Built in) Usage Method: 1. Remove the original key chip, solder the connecting wire harness to each key function switch according to the instructions. 2. After soldering the original key, connect the other end of the connecting wire to the socket. 3. Insert the OBD module into the OBD interface under the main driver's seat of the car. Application: