How to Use: Step 1: Take out the main board of the original car key, and weld the connection harness to the function switch of each button corresponding to the original car key according to the schematic diagram on the operation manual. Step 2: After the welding of the original car key is completed, connect the other end of the connecting wire to the socket. Step 3: Insert the OBD module into the OBD interface below the main driving seat of the car. Specification: Item Type: Smart Remote Key Material: Aluminum alloy, ABS LCD Screen Size: 2in Screen Resolution: 240x320 Language: English Battery: 800mAh lithium battery (Built in) Applicable Models: Applicable for models with Start Stop Engine Button (not for mechanical key and plug in models!) Package List: 1 x Smart Remote Key 1 x USB Cable 1 x OBD Box 1 x Key Chip Connection Cable 1 x Manual Note: 1. Professional mechanic installation is recommended, and an English manual is included. 2. If you have any problems during installation or use, please feel free to contact our customer service staff and we will solve all problems for you. 3. Support 17 languages, the default is English, if you need other languages, please contact our customer service staff.