All Black Headset Microphone for Sennheiser G2 G3 G4 BeltPack Wireless HeadMic | eBay
Pro Instrument Microphone For Sennheiser G2 G3 G4 Wireless Belt Pack Music Mic | eBay
Troubleshooting a Sennheiser G3 or G2 mod: With Comparisons Between a Set Having Only the RX Modded, and a Set Having Both the TX & RX Modded. – Wav.Report