Sennheiser HMD 26-II-600-X3K1 Broadcast Headset, 600 Ohm Impedance, ActiveGard, Dynamic Microphone Sennheiser HMD 26-II-600-X3K1 Broadcast Headset - Cable Clip - Large Headband Padding - Wind And Pop Screen - Manual - Sennheiser Warranty Lightweight with extra soft cushions for excellent wearing comfort Accurate and linear sound reproduction for professional Radio and TV applications Microphone provides audio transmission in broadcast quality ActiveGard (on/off switch) for protected hearing