On this issue, 1. First determine the brand and model of the universal remote control and audio to ensure that the universal remote control supports the audio brand and model.
2. Find the sound code in the instruction manual of the universal remote control. If there is no code for the brand and model, you will need to use the manual search function.
3. Follow the instructions of the universal remote control, enter the code of the sound or use the manual search function.
4. Press the power button of the speaker to check whether you can control the switch of the speaker. If not, try re-entering the code or using the manual search function.
5. Test other sound functions, such as volume, mute, play, pause, etc., to ensure that the universal remote control can fully control the sound.