Have not had that issue. But suspect a poor connection? Are BOTH earphones showing the same type of noise? 1) Try removing and re-attaching the MMCX connectors. Make sure to completely seat them, and then rotate them a few times to help remove any oxidation/oil/etc. 2) Also make sure the 3.5mm jack connection if clean. Again rotating after insertion may clean it some... 3) Try another cable if none of the above works. Could be a bad cable? 4) If none of above works, then earphone(s) may be defective.