Pro Headset Headworn Head-mounted Microphone JK MIC-J 060 for Shure Wireless - Mini XLR Ta4f Connector - Omnidirectional Mic Sweat and Dust-Proof Made Primarily for Indoor and Outdoor Activities Gooseneck Microphone Boom of JK MIC-J 060 Yields Maximum Flexibility Professional Vocal Pickup, Pristine Audio Quality, Omni-directional Condenser Microphone Mini XLR TA4F Connector Compatible With Shure GLXD1, PGX1, SC1, SLX, U1, ULX1, ULXD1, UR1, UR1M, UT1, QLXD1 / TOA WM4300 / Line 6 XD-V70L Wireless Microphone System Designed for Broadcasters, TV Presenters, Lecturers, Musicians, Actors, Singers, and Any Other Applications Requiring Minimum Microphone Visibility with Maximum Comfortability Sweat and Dust-Proof Made Primarily for Indoor and Outdoor Activities Professional Vocal Pickup, Pristine Audio Quality, Omni-directional Condenser Microphone Mini XLR TA4F Connector Compatible With Shure GLXD1, PGX1, SC1, SLX, U1, ULX1, ULXD1, UR1, UR1M, UT1, QLXD1 / TOA WM4300 / Line 6 XD-V70L Wireless Microphone System Designed for Broadcasters, TV Presenters, Lecturers, Musicians, Actors, Singers, Performers and Any Applications Requiring Minimum Microphone Visibility with Hands-free Operation Polar pattern: Omni-directional Mic diameter: 4.0*1.5mm Sensitivity: - 43db2db SNR: &gt;58db Wire: 1.1m 2pcs of foams Frequency Range: 20-20KHZ Output Impedance: 2200ohms Standard Operation Voltage: 2.0V-10V.DC