TelephoneStuff.com VXI Passport 37V-DC Over-the-Ear Noise-Canceling Headset.. PASSPORT-37V-DC-6

Passport 37V-DC is a professional grade, direct connect convertible headset for phone systems that don't require the use of an amplifier. Features: - Over-the-head or over-the-ear wear - Lightweight - Noise canceling microphone - Left or right side placement Compatible with the following IP Phones: - Avaya IP Phones: 2402, 2410, 2420, 4601, 4602, 4606, 4610SW,4620, 4621SW, 4622SW, 4624, 4625, 4630SW, 4690, 5410, 5420, 5610, 5621 - Avaya Digital Phones: 6408D+, 6416D+, 6424D+ - Nortel: M3901, M3902, M3903, M3904, M3905 - Nortel IP Phones with the use of HGT adapter Model # 202207: 1110 IP Phone, 1120E IP Phone, 1140E IP Phone, 1150E IP Phone, 2001 IP Phone, 2002 IP Phone, 2004 IP Phone, 2007 IP Phone - Aastra: 480i, 9133i, 9112i, 9113i, 53i, 55i, 57i - Polycom: SoundPoint IP 500, 501, 550, 600, 601, 650, 300, 301 and 430 - Snom: Basic 300