https://www.moonraker.eu/mfj-5704p-for-4-pin-round-mic-connector?___store=english7725MFJ-5704P - For 4-Pin Round Mic Connectorhttps://www.moonraker.eu/media/catalog/product/m/f/mfj-5704p_0223_1.jpg26.9926.99GBPInStock/Amateur Radio Equipment/Amateur Radio Equipment/Microphones, Headsets and Earpieces/Extension Cables/AdaptersFor 4-Pin Round Mic Connector