DeskMate Dual-Ear Easy Connect Bundle (Avaya, Polycom, Alcatel, Aastra and Nortel Phones) Noise-canceling microphone helps reduce background noise Unparalleled comfort with a leatherette ear cushion, flexible headband and German design, the DeskMate is the most comfortable headset in the world 4-year full-replacement warranty the best of ANY headset available Direct connect plug directly into specific Avaya, Polycom, Alcatel, Aastra and Nortel Phones Quick disconnect cord step away from your desk without removing your DeskMate