This is an app that discovers and connects devices through Bluetooth on a mobile phone, and controls the device by interacting with the device's data. Compared to traditional physical remote control devices, using mobile apps to replace traditional physical remote controls is more flexible and convenient in terms of user experience and control convenience. This app can discover and connect devices, and can switch between different modes and functions of the device, such as shutting down, setting the timer function, setting the volume and amplitude, etc. It can also play local music on the phone, and synchronize the current status of the device on the app interface.