What headphones do you use in the office?
electromagnetic: I have a pair of RCA HPNC300's, they weren't all that expensive and their noise canceling works great. I even wear them at home, they can cut out a lot of background noise as they clear a lot of the bass noise that tends to overpower other sounds.I used to fly a lot and they worked amazing, it really helps when you don't hear the rumble of the engines.The only problem with the HPNC300's is that they're on-ear headphones and as I wear quite thick-armed glasses once every few days the headphones just really pile on the pressure. If you don't wear glasses then I don't imagine you'd ever have a problem with on-ear, although personally I'm also looking for a good pair of circumaural (over-ear) but I don't really have a need to spend money on them now. When I got my current pair of headphones the price difference between noise canceling on-ear and over-ear was just shit stupid, it was like double-tipple the price for equal dB reduction through the noise canceling and not simply being a $400 pair of ear protectors with earphones built in.