Well, turns out there was a defective part. My child walks (literally) several miles in them in a day. The Bose are exceptionally comfortable. Great crocs - perfect condition & exactly as described by the seller. It?s not comfortable like the others. You feel the added inertia when rapidly turning your head, but thats unavoidable. User Manual was immediately confusing to me and Im a tech geek who lives for this stuff! I tried charging my three PS4 controllers via USB cable, but now they wont charge and they wont even respond when I hit the power button, even though they were working just fine yesterday. Have moderate noise cancelling abilities. exactly what I was looking for