MAIRDI Cisco Headset Telephone Headset RJ9 with Noise Cancelling Microphone Jabra Compatible Plus Extra 3.5mm Connector

☀Super Comfort Telephone Headset with Quick Disconnect (QD) Plug☀With RJ9 and 3.5mm Connector for Both Landline Deskphone and Cell Phone, PC, LaptopsWith RJ9 Connector for Cisco IP Phones of RJ9 headset portWith 3.5mm Connector for Cell Phone iPhone Samsung., PC, LaptopsWork for Cisco 7931G 7940 7940G 7941 7941G 7942 7942G 7945 7945G 7960 7960G 7961 7961G 7962 7962G 7965 7965G 7970 7970G 7971 7971G 7975 7975G 6921 6941 6945 6961 7821 7841 7861 8811 8841 8851 8861 8941 8945 8961 9951 9971 and morePlantronics Amplifier M10 M12 M22 MX10 Vista Modular Adapters ', NOTE: IT DOESN'T COMAPTIBLE WITH CISCO SPA SERIES, ''