Simple Key is a new way for consumers to easily replace modern car keys. The consumer-friendly kit includes an emergency key and EZ Installer. The emergency key blade can be cut at most hardware stores, car dealers, or automotive locksmiths. The included EZ Installer is used to pair the key to the vehicle in just a few minutes. Works just like your OEM key. The EZ Installer DIY pairing dongle allows you to pair your key entirely on your own. Avoid the hassle and expense of having to go to the dealership for pairing. The EZ Installer is a single vehicle use pairing tool. Once you use it on your vehicle, it cannot be used on another. This Smart Key has 4 button functions: Lock, Unlock, Trunk, and Panic. The emergency key blade insert allows you to open your vehicle manually in case your remote battery becomes too low.