The Xhorse Smart Key Box is an adapter that can be used to access a vehicle using a mobile phone app via Bluetooth connection. In other words, with this adapter, you can add Bluetooth Connectivity to the Central Locking System / Keyless Entry System of any vehicle that you can configure an Xhorse Universal Remote to operate. This adapter will allow wireless (via Bluetooth) locking, unlocking, and remote start. Keep in mind that this adapter does not add any of these features to the vehicle. In order for this adapter to wirelessly lock, unlock, or remotely start the vehicle, these features have to already be functioning in the vehicle before the Xhorse Smart Key Box is installed. It adopts advanced RF technology and is suitable for the car with push start function. Support add smart key for car Support add or modify the keyless-enter function Use VVDI Device to generate remote control. Support device: MINI Key Tool, Key Tool Max, Key tool Plus, VVDI2