I was cleaning mine today (a second time from August when I bought them seems) and noticed some… like dust caught in a holes at the end of the buds stem. I tried to capture it:

I guess that you’re all clean your Ear’s sometime (otherwise it’ll start to look sloppy at least), so maybe you have any suggestions how this can be cleaned and does this affect on sound/anc?🤔 I barely noticed anything tbh because they tend to fall from my ears (so the ANC isn’t really working because of this), but still.