Melomania TouchCommon issuesOne earbud is louder than the other
Melomania Touch

One earbud is louder than the other

Try this solution

Check the volume balance settings on your device

The volume imbalance may be caused by settings on your mobile device.

On iOS, go to "Settings → Accessibility → Audio/Visual".

On Android, go to "Settings → Accessibility → Hearing"

Please check that the volume balance settings match your preference between the left and right earbuds.