Since they do this, theyve become very uncomfortable. First, I love dark wood, and it has screw holes/mounting through the front! Sound quality is by far much better than any of more expensive headphones. Most MVNOs indicated that it was not compatible and some said were compatible, but after several unsuccessful attempts to activate the device I didnt want to waste my time and returned the devise. Id seen the tv commercials demonstrating how easy it is to release them from the wall-- and they work exactly as depicted. There are many features that I am still discovering, and the applications work seamlessly, so far. Anyway, I am loving the shelf now. I don?t believe it?s a memory foam but it is a type of foam and it does feel pretty good. Fast shipping at the holidays. Ill probably buy a yellow or brown heavy duty potholder to hang behind these pretty ones.