One Earbud Is Much Quieter Than the Other

• Make sure both earbuds are positioned correctly and that the speakers are close to and aligned with your ear canals.
• Check whether the quieter earbud has a low battery.
• Check whether the speaker opening is blocked by dust, oil, or other debris.
• Test different apps, videos, or audio files.
• Make sure the left/right audio balance setting on your phone is centered.

Use a dry, soft brush to gently clean the speaker opening. Do not use sharp objects, water, or other liquids.