All in all, these are a keeper. This is a keeper. Great fit, love the style and material, love the optional strap, seems like a thoughtful company from the detailed packaging info. As expected, the clip held fast and the receiver did not move or slip during the performance. Other than that very comfortable and makes my daily 12 hour shifts not too bad :) Took a few applications of wd40, repeated bangs of a hammer and leaving them them overnight to finally loosen. I asked for a replacement of the Fly 9, and I just happened to mention in my message that my next purchase would be a Fly 10, which is their most recent model of the same headphones. Then the pjs will be perfect. Or the air purifier is roaring inside. My iPhone came with a big scuff on the corner (aluminum frame) and a small (not really noticible) scratch on the front and back of the phone.