The music on the bathroom heater needs to be connected to a mobile phone to play. Specific steps:

1. Turn on the power switch of the audio and perform Bluetooth search.

2. Turn on the Bluetooth function of the mobile phone and set it to search in the Bluetooth settings of the mobile phone.

3. Then click Search to find the Bluetooth device. After searching, click to select the Bluetooth device.

4. Bluetooth connection can synchronize the music in your mobile phone. When taking a bath, you can choose and listen to your favorite music as you wish, turning the bathroom into a privately customized music hall.