1. Replacement 315MHz key fob for / /Explorer/ , directly replace the old key. 2. Designed with 3 buttons: car door lock, unlock and horn, high sensitivity, convenient to use. 3. Made of premium ABS material, wear resistant, anti-corrosion and durable, not easy to damage. 4. Exquisite workmanship, elegant and generous appearance, comfortable hand touch. 5. Built-in 1 CR2025 button battery, with a capacity of 200 mAh, it has a long service life. Specifications: Item Type: Remote Key Fob Material: ABS Frequency: 315MHz Buttons: 3 (car door lock, unlock, horn) Battery: Button cell, CR2025x1, 200mAh (built-in) Fitment: 2018 - 2020 Replacement for 2017 - 2020 Replacement for 2018 - 2020 Replacement for Explorer 2018 - 2020 Replacement for 2017 - 2020 Replacement for 2017 - 2020 Replacement for 2017 - 2020 Replacement for F-450 2017 - 2020 Replacement for F-550 2017 - 2018 Replacement for 2019 - 2020 Replacement for Ranger Instruction: Our key entry remotes 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 Key Fob Remote 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.