This app is used by handles that support keylinker protocol which can be set to modify the parameters of more than ten functions of the handle such as keys lamplight vibrations joystick and trigger. Users can modify the parameters of the handle according to their habits. The flexible parameter settings greatly enhance the handle experience.The handle can be connected to this app and other equipment at the same time This app can also support the direct connection handle and be compatible with different mobile phones and gamesYou can set the touch position and parameters of each button and button combination on the mobile phone so as to adapt to different mobile phone screens and games.