If the following situations seem to cause the issue, clean the mesh sheet with gentle running tap water.
- Foreign substances (such as earwax) build up in the headphone sections.
- Water gets inside the headphone sections.
Additionally, for how to maintain and clean the player after sports (swimming or running, etc.), refer to the Help Guide.
Updating the headset software to the latest version may resolve the issue. Perform the update before going to the next step.