1. Clean the ear tips, speaker mesh, rear acoustic vent, call microphone, and charging pins on the earbuds and case promptly after use (we recommend cleaning charging pins with alcohol swabs or cotton cloth at least 1 - 2 times per month).

How to clean (video guide): https://youtu.be/kLUxkCRvr0s

If you encounter any other issues or your issue has not been resolved, please contact us for further assistance.