Low Profile Light-weight Headset Headworn Earhook Microphone JK MIC-J S90 Compatible with Sennheiser Wireless System Sweat and Dust-Proof Made Primarily for Indoor and Outdoor Activities Professional Vocal Pickup, Pristine Audio Quality, Omni-directional Condenser Microphone 1/8 Inch (35mm) Locking Screw Plug Compatible With Sennheiser Evolution Series, G2, G3, EWD1, SK D1 / Line 6 X2 Digital Wireless Microphone System Designed for Broadcasters, TV Presenters, Lecturers, Musicians, Actors, Singers, and Any Other Applications Requiring Minimum Microphone Visibility with Hands-free Operation