Features: 1.This remote key fob has 2 buttons, with the functions of locking and unlocking the door. 2.Built?in chip, 434HMZ frequency, high sensitivity and stable performance, reliable to use. 3.Made of high quality ABS material, wear resistant, anti?corrosion and durable, long service life. 4.Built?in 1 CR2025 button battery, with 200mAh capacity, it has long service life. 5.Original standard, it is a direct replacement for the old or damaged remote key. Specification: Item Type: Remote Key Fob (Built-In Chip)_x000D_ Material: ABS_x000D_ Buttons: 2 (car door lock, unlock)_x000D_ Battery: Button battery, 1 x CR2025, 200mAh (built-in)_x000D_ Frequency: 434HMZ_x000D_ FCC ID: A269ZUA111_x000D_ _x000D_ Instruction:_x000D_ Our keyless entry remote fobs are brand new never used inside and out. This means that the outer shell (casing), button pad with icons, and electronics (pcb) have never been used before. Beware of other items being sold as brand new when in fact it is a used circuit board inside of a new shell (case). These items can be as much as 20+ years old depending on the year of your vehicle. Replacing the case on a used original remote may interfere with the functionality and manufacturer's warranty. PackageList: 1 x Remote Key Fob Note: This remote key will have to be programmed by a qualified locksmith for programming. There is no manual way for a user to do it themselves. Please check with some locksmiths in your area and be sure they will reprogram one of these keys for you.