In this APP, the motorcycle anti-theft function is opened and closed by scanning, automatic connection and password verification of motorcycle Bluetooth. In the open state, switch, adjust the volume and switch mode to the Bluetooth stereo. In the audio mode, automatic selection can be carried out; U disk and SD card mode can play a pause, up and down, get the current song name song play progress; in BT mode, Bluetooth audio can play the music on the mobile phone. The long press can open and close the color lights.