Countryman MHCW3HH05BSR  W3 ISOMAX Cardioid Headset Microphone for Sennheiser Transmitters (Black) W3 ISOMAX cardioid headset microphone Fits Sennheiser transmitter models Evolution Series, EW100 (G2/G3), EW300 (G2/G3), EW500 (G2/G3), SK 1093 and 3.5-mm locking connector It's affordable and durable, providing a long life of excellent sound Extremely popular among high-profile rock performers onstage and in the studio Available in black color