Pretty happy with these. Very comfortable, incredible battery life and look very slick. I think that these three things trump the Sonys XM4s. The main reasons I bought these was good sound, good comfort for extended periods of time, and isolation from household/office noise and they fit the brief. If you're getting them for noise cancellation: it's ok, but as good as say, my Jabra Elite Active 75t (in ears). Furthermore, they have a weird reverberating low frequency sound when they are bumped with noise cancellation on. For this reason, I can't really give it 5 stars. That said, the isolation is pretty good with standard sound on so...view more