Reddit reviews 4P4C RJ9/RJ10 to 3.5mm Female Headset Adapter Cable Stereo Converter Telephone Cord for iPhone Cisco IP Phones 7931G 7940 7941 7942 Plantronics MX10 Vista Modular 30CM

4P4C RJ9/RJ10 male plug to 3.5mm TRRS female jack headset adapter cable for most VOIP phones that have a RJ9/RJ10/RJ22 headset jack (Not compatible with RJ11), like Avaya, Cisco Office Phone and moreRJ9 to 3.5mm Headset cable convert 3.5mm smartphone plug to single 4P4C RJ9 or RJ10 handset plug. NOT COMPATIBLE WITH iphone Headset, but get great quality stereo sound from headset via this adapter3.5mm TRRS female jack to 4P4C male plug compatible with Cisco Unified 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 6921 6941 6945 6961 7821 7841 7861 8811 8841 8851 8861 8941 8945 8961 9951 9971 and Plantronics Amplifier M10 M12 M22 & MX10 Vista modular adaptors4P4C RJ9 telephone connector color : RJ9 female adapter gray, wire cable leads color:green, red, yellow, black; Dimension : adapter head: 17 x 11 x 10mm/ 0.57" x 0.43" x 0.4"(LxWxT)4P4C RJ10 headset cable, 616E 4P4C RJ9 female telephone connector adapter with 4 Wires welding cable, great for home, businesses, offices, call centers, and more. Don't need to worry about the compatibility. 3 converters of different standard inside to fit most brand. Choose the right one easily