YPA MM1-C4SE Adjustable Professional Mini Headset Mic w/ 3.5mm Screw Lock for Sennheiser Wireless Microphone Beige Compatible with Sennheiser transmitters:Evolution Series, G1, G2, G3 & freeport, EW100, EW300, EW500, SK1093, SK20, SK300 Slim, lightweight and professional omni-directional condenser bodypack microphone For vocal, speech, dance and sport applications, for instrumental artists and solo entertainers Adjustable Headsetframe and Microphone Boom Silicone padding at the earpiece, resistant to makeup, sweat and moisture