2pcs AV-JEFE AVL670 Professional Omnidirectional Earhook Microphone (Beige Color)_ Compatible with Sennheiser Wireless Transmitters Super Lightweight! Extremely flexible and easily adjust to fit over the ear of any user High quality voice/sound pickup. Boom is bendable for mic positioning to get optimum vocal clarity Compatible with your Sennheiser wireless transmitters: Evolution Series, EW100, EW300, EW500, G2, G3, SK 1093 RoHs and REACH Complied. Without Pb, Hg, Cd, Cr6+, PBB, PBDE. Quantity: 2pcs ** Important: For wireless receivers & transmitters of other brands, please contact us to check the compatibility first, even their connectors look identical, since they may have different internal wiring.** (Not for direct use with mixers or camcorders. Wireless Systems Not Included.)