Summary: I work in a very loud office environment, and needed something to allow me to work and still hear phone calls at the same time. The Sennheiser CC540 is comfortable to wear, easy to use and set up and has great sound quality.
Summary: We bought three sets of Sennheiser CC 540 to work in conjunction with our Polycom IP32x phones. The headsets are exceptionally well made and comfortable to wear. It's a bit too early to say much about noise cancelling but the sound quality is excellent.