Pro Lavalier Lapel Microphone Unidirectional Cardioid Microphone JK MIC-J 017 Compatible with Sennheiser Wireless Transmitter Professional Vocal Pickup, Pristine Audio Quality, Uni-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