I got tire of replacing headphones in the studio all the time. I got a bunch of the phones from Harvey quite some time ago, figuring I'd be throwing them away after a short time. Well,,, it's been over 2 years, and these things must be weapons grade, because I haven't thrown any of them away yet and still have a large supply of unused phones ready to replace if any should go bad. If someone steps on them, they bend and don't break. They look cheap, and sound OK, but they take a licking and keep on ticking. (anyone remember that commercial?)