Good Quality Headset Microphone Condenser Mic 3.5mm Lockable Plug Compatible with Sennheiser Wireless Bodypack Condenser headset microphone with 3.5mm lockable plug compatible with Sennheiser wireless bodypack .;Highly sensitive high dynamic and wide frequency response.;Head-mounted design gives you of movement and performance.;With foam windscreen for effectively reducing environmental noise.;Wide application can be used for speech teaching tour guide interpretation etc.