Callez Cisco Phone Headset with Microphone Mute Switch, Corded RJ9 Telephone Headset for Cisco Office Landline Phones 6941 7811 7841 7941 7942 7945 7962 7965 7975 8841 8845 8851 8861 Plantronics M12

Callez phone headset with microphone noise cancelling for Cisco office IP phones & Plantronics Amplifiers. This binaural hands free phone headset with microphone mute switch and volume control onto the cord is ideal to use in Call Center Service, Conference Calls, Telemarketing, Insurance and Office etc. Super lightweight design, adjustable headband and soft ear cushion ensure comfortable wearing all day. Crystal clear calls can improve work efficiency greatly. Notice: Not compatible with Cisco Spa phone series. Not for cell phones and computers. This corded RJ9 telephone headset ONLY compatible for some Plantronics Amplifiers and Cisco IP phones (please refer to compatible phone list below for details. If your phone model is not listed, please do not buy it and consult with us for compatibility advice and guide.) Compatible Phone List: Plantronics: M10, M12, M22 & MX10 Amplifiers Cisco IP Phones: 7931G, 7940, 7940G, 7941, 7941G, 7942, 7942G, 7945, 7945G, 7960, 7960G, 7961, 7961G, 7962, 7962G, 7965, 7965G, 7970, 7970G, 7971, 7971G, 7975, 7975G, 6821, 6841, 6851, 6921, 6941, 6945, 6961, 7811 7821, 7841, 7861, 8811, 8841, 8845, 8851, 8861, 8941, 8945, 8961, 9951, 9971