“Your device is controlled by connecting to our cloud server through mobile app, so you can control your device normally no matter where you are. If the device has been connected to the Internet successfully, make sure that the device is in the network environment. When you leave home, you can also use the mobile app to remotely control the device (the app can monitor whether the device is in normal connection state, and make sure that the device is in normal online state). If the device displays "offline", it cannot be controlled (Bluetooth devices only support close range operation at present)”.