Cable with capacitor for dynamic elements PRO models for Icom 8 pin round
These leads interface the Heil PRO headsets to standard 8-pin mic sockets they have a capacitor in series. A 3.5mm mono sockets accepts the mic output of the headset whilst a 1/4in jack sockets enables an external PTT to be connected. Models available for Icom, Yaesu and Kenwood.
See below for Heil selection guide: