I got a set of these the other day for work. 3M Tekk work tunes noise canceling headphones, with built in radio tuner and MP3 support. As noise canceling go, they rock, and they're pretty comfortable too. The radio tuner works well as does the MP3 input. The sound quality is good from an original source (an un-modified file) though it gets kinda choppy/distorted on songs that I had increased the gain (older songs that were mastered really low) even if it was minimal. Overall I really like them, a step up from just the regular headphones i was using and, they're pretty rugged too.
