Point Source Audio CM-EXT-4-4 4-Pin Mono Male XLR To 4-Pin Mono Female XLR Extender Cable For CM-i3-4F And CM-i5-4F Headsets - 4fExtend your headset cable and give yourself more room to move with the 4' 4 Pin Mono Male XLR to 4 Pin Mono Female XLR Extender Cable from Point Source Audio. The cable's male end connects to the CM i3 4F or CM i5 4F headset, while the female 4 pin XLR connector is suitable for use with Clear Com, Riedel, and RAD intercom systems. Features For CM i3 4F and CM i5 4F Headsets For Clear Com, Riedel, and RAD Systems Extends Cable Length for More Movement