Poly audio condenser Headset head microphone mike for Vocal cordless microphones EW100 G2 EW135G2 G3 This is a Brand New Headset headworn microphone for use with sennheiser wireless microphone system that have 3.5mm screw jack. Comes with microphone windscreen foam Headset Microphone Product Description ABS nesting design of its phone arm, cozy to wear; Good sales accountve been got in Europe and north American market for its classical colour, unconstrained outline, and smoothly timbre. Features Appointed pickup, suitable for high vocal quality requriment area. ABS nesting, unconstrainted outline design, suitable for every head form. Adjustable mic arm, easy to be a best effect of pickup. With excellent shield line, make to noise to be a lowest level. Its wire are hidden on the back artfully . Kind of plug for choice, make a convenient for Launch System. Technicial parameters Polar pattem: Unidirectional Mic diameter: 9.7*5.2mm Sensitivity: - 47db2db Frequency Range: 20-20KHZ Output Impedance: 680 Standard Operation Voltage: 1.0V-10V.DC SNR:>58db Wire: 1.0m