I had the same problem with my JBL Charge 3 I contacted customer service the device was still under warranty so they sent me a shipping label and a way to return the unit for a replacement. I have the new unit now, it worked fine for a couple weeks with no problems, now I have the same staticy noise. I've contacted customer service again about the problem and the only solution that they can come up with is to send me another replacement speaker. Hope this helps. Good luck.