3.5 MM 6" cord for GN Netcom/Jabra, Smith Corona Classic Series, VXI G Series Headsets, Starkey G Series 3.5 mm 6" cord for GN QD compatible headsets Has a GN Netcom/Jabra quick disconnect on one end and a 3.5mm prong plug on the other Dual barrel prong, for use on desk phones that have a 3.5 mm headset port on them Can use with Smith Corona Classic Series headsets, VXI G Series, Starkey G Series Contact Headset World USA with any questions regarding compatibility