I know there’s already a thread on the rattling issue. I had that problem and had one of mine replaced this past fall. But over the past 2 months I’ve also been having an issue with a very high-pitched whistling. It’s a very loud sound when first putting them in my ears and then it’s most noticeable with Transparency mode but also somewhat with noise cancellation. I notice it most in the right pod. If I turn off noise cancellation/transparency it goes away entirely.
Anyone else? From what I’ve read Apple is replacing units with the rattle, anyone know if this whistling is widespread and if they are replacing for folks? A search seems to indicate that it is indeed an issue for others.