Bluetooth audio can be connected to the Bluetooth function of the mobile phone. The connection method is as follows: first turn on the Bluetooth stereo, then turn on the mobile phone, turn on the Bluetooth function in the settings of the mobile phone, automatically search for matching devices after turning on, and then click the searched devices to automatically connect. After the connection, the Bluetooth speaker will beep, indicating that it is connected. You can play the stored music with your mobile phone, and the concert will be released from the Bluetooth speaker.