'strong'-Lost your car keys again? Never fear, BestKeys is here! This is a fully functional replacement key fob.FCC ID: M3N-A2C93142600, P/N: 164-R8166'br'Frequency:902 MHZCompatible with:'br' please make sure that your original key looks identical.'br'for 2018 2019 2020 Ford F-150,'br'for 2017 2018 2019 2020 Ford F-250 F-350 F-450 F-550'br'Original key must be identical with the one in the pictures. setup instructions: 1-We provide guidance in video and text versions.Pleaseuse your smart phone to scan the QR code inside the box to download the app. 2-You need a key to start the car to provide power, insert the assitant to connect to the Bluetooth of your mobile phone, and setup according to the steps. 3- please open the plastic cover of the armrest box and put the key into the sensing area below.Pleasecheck the location indicated in the picture. 4-If you have any usage problems,Pleaseprovide Amazon or email to contact us, we will provide a solution We provide very simple guidance, and one can expand 8 keys for single car use only.That is to say, after you buy our product and use it this time, you can keep it at home. The next time you need to expand more keys, you can directly purchase a separate key. Aftermarket remote, no logo no part numbers on it. Before buying,Pleaseconfirm your original remote looks exactly same as this item(blade, button,fcc id). Otherwise, it will not work for your car. BestKeys replacement kit assitant is only used by car owners to setup their own vehicles,and other actions are not affiliated with BestKeys.