Hello, what you want to ask is the reason why there is no sound in Xiaomi's exercise and fitness course? Xiaomi's exercise and fitness course has no sound for the following reasons:

1. Check whether Xiaomi mobile phone has turned on mute, Do Not Disturb and other modes, turn off relevant modes and try again;

2. Check whether the Xiaomi mobile phone is connected with a Bluetooth headset, turn off Bluetooth or turn off the Bluetooth headset and try again;

3. You can try to play online music with the music that comes with Xiaomi's mobile phone to confirm whether there is something wrong with Xiaomi's exercise and fitness application.

4. If there is no sound after the above operation, I suggest you go to Xiaomi mobile phone for after-sales inspection.