1. This remote key fob has 2 buttons, with the functions of locking and unlocking the door. 2. Built-in chip, 433HMZ frequency, high sensitivity and stable performance, reliable to use. 3. High quality ABS material, wear-resistant, anti-corrosion and durable, not easy to damage. 4. Built-in 1 CR2025 button battery, with a capacity of 200 mAh, it has a long service life. 5. Original standard, this is a direct replacement for the old or damaged remote key. Specifications: Item type: smart car key Material: ABS Frequency: 433MHz 2 buttons (car door lock and unlock) Battery: button cell, 1 x CR2025, 200 mAh (built-in) Instruction: Our remote controls Entry key are new and never used inside and out. This means that the outer shell (case), button pad with icons and electronics (pcb) have never been used before. Be wary of other items sold as new when in fact it is a used circuit board inside a new shell (housing). These items can be up to 20 years old or older depending on the year of your vehicle. Replacing the case on a used original remote control may interfere with functionality and the manufacturer's warranty. Package List: 1 x Car Key Note: This remote will need to be programmed by a qualified locksmith for programming. There is no manual way for a user to do this themselves. Please check with some locksmiths in your area and make sure they will reprogram one of these keys for you.