Cisco Phone Compatible Plantronics HW261N Bundle - Cisco Phones: 7931, 7932, 7940, 7941, 7942, 7945, 7960, 7961, 7962, 7965, 7970, 7971, 7975, 7985, 6921, 6941, 6945, 6961 8941, 8945, 8961, 9951, 9971 BUNDLE OF 2 ITEMS: Plantronics Encore HW261N Headset and Ergonomic Cisco Telephone Interface cable IMPROVED QUICK DISCONNECT: Erogonomically contoured connectors allows for easier disconnect from phone without removing headset. And reduce hand and finger fatigue due to improved connector design. LARGE EAR FOAM COVERS: Covers are made of breathable foam to reduce heat from wearing headsets all day on your ears. PLANTRONICS SOUND QUALITY: Noise-canceling microphone filters out background noise, Wideband Rich Audio CISCO COMPATIBILITY: 100% to be compatible with the mentioned Cisco phones. Unlike other big box retailers that offer little or no support we offer friendly, Virgina-based, support agents to help you if you have compatibility questions.