①Press the display panel buttons at the same time for “Speed” and “Volume”. After 3 seconds, enter the user settings. Press “Remote” at this point to toggle settings options.

②Menu 4：Volume settings

③Press “Add” and “Subtract” at this point.

④Adjust the machine to play music and prompt sound size：0-30（0：Mute、 30：Maximum volume、Recommended parameters：4-20）

⑤Once set up, it’s done. Press “Speed” and “Volume” at the same time to exit the settings interface.