The headset is comfortable and offers excellent sound quality. Like all Poly headsets for office use, the DuoSet /MO200 headsets are suitable for the patented SoundGuard Plus and the easy-to-operate Quick Disconnect feature puts the caller on hold and allows the user to leave their workplace without having to take off their headset. The DuoSet / MO200 headsets with noise cancelling are ideal for use in situations where clear communication can be disrupted by background noise. The DuoSet / MO200 headsets are part of a complete range of headsets from Poly. For more information, please contact your distributor or dealer. He can tell you why people around the world are talking about and through Poly headsets.