Though the earcups swivel up and down, the headphones fail to fold in any way; if you are foolhardy enough to take these out in public, be sure to make space in your bag. Compared against the Brainwavz's biggest threat -- the Audio Technica ATH-M50 -- build quality is actually a shade better due to the lack of moving parts. The Audio Technica's hinges have an irritating habit of creaking whenever you move your head.
As with other professional headphones, the cable is detachable and comes with a 1.3-meter or 3-meter cable in the box. There is also a spare set of earcups once you sweat your way through the originals.
In a competitive sense, the Audio Technicas sell for $10 more but have the advantage of a substantial studio heritage and better word-of-mouth. But apart from a slightly better build the Brainwavz have several other things going for them. The Brainwavz headphones are more sensitive than the ATH-M50s, meaning that they can output more volume and sound good for mobile use, and they're more neutral, too.
I used the Brainwavz as my main set of work headphones for several weeks and found this neutrality to be suited to most music, but they do sacrifice some dynamics compared with the punchier ATH-M50s. Whether it was the delicate strum of acoustic guitars in pastoral R.E.M. tracks or the full-blown mental breakdown of Future of the Left, the HM5s were always excellent communicators. About the only people who would be disappointed by these lovely sounding cans would be dubstep fans.