Hi ABC Jelly,
Welcome to the Microsoft Q&A forum.
With most Bluetooth earbuds, Windows 11 treats the device as a single stereo output. Because of how these devices present their audio controls, the Left and Right balance sliders may move together instead of independently.
Here are some possible options for you to move forward:
1, Check classic Sound settings
- Press Windows + R, type
mmsys.cpl, and press Enter - Select your earbuds under Playback tab
- Right-click the earbuds > Properties > Levels > Balance
If both sliders move together, the device doesn’t support separate channel control in Windows.
2, Use Mono audio
- Open Settings > Accessibility > Audio
- Turn Mono audio ON
3, Check the earbud’s companion app
- If available, some manufacturers allow left/right tuning inside their mobile app. Any adjustment there applies directly on the earbuds and works across devices.
Let me know if you need further assistance, feel free to ask me by clicking "Add Comment" or "Add Answer" if you cannot add comment so your response will be visible. Thanks for your effort.
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