Cisco Compatible Plantronics HW510V Headset with Cisco compatible cord

Over-the-hear Monaural Voice tube Adjustable fit lightest in its class Quick Disconnect feature provides walkaway convenience and compatibility with all Plantronics USB, desk phone audio processors, and direct connect cables This is a NON Noise canceling mic on headset, voice tube  Includes a CISCO compatible bottom cord for direct connection to their 69XX,79XX,8800,9000 series phones Compatible Cisco phones:6921 6941 6945 69617821 7841 78617931G 7940G 7941 7941G 7942G 7945 7945G 7960 7960G 7961 7961G 7965G 7970 7970G 7971G 7975G8811 8841 8851 88618941 8945 89619951 9971