The M81-WH2 brings the M81s condenser-like performance, midrange clarity, and high SPL handling to the Sennheiser wireless transmitter platform. Featuring the same low mass diaphragm and custom wound output transformer as the handheld M81 Standard and low-profile M81-SH, the M81-WH2 provides the impressive sound quality and reliability one expects from a Telefunken Dynamic Series microphone. This product is intelligently designed to minimize handling noise and seamlessly mate to your wireless system of choice.Main Features:Same clear, condenser-like performance as the wired M81Prestine audio quality with a clear, detailed frequency response and high SPL handlingSupercardioid polar pattern provides excellent feedback rejectionLow mass diaphragm reduces proximity effectMates with many industry-standard wireless transmittersDesign and hand assembled in the USASpecifications:Type: DynamicPolar Pattern: SupercardioidFrequency Range: 50 Hz 18 kHz, 3 dBCapsule: 25mm Dynamic Moving CoilTransformer: TELEFUNKEN Elektroakustik T80Sensitivity: 1.54 mV/Pa, 1 dBOutput Impedance: 325 Maximum SPL (for 1% THD): 135 dBDimensions/Size: 93 mm L x 48 mm DiameterWeight: 178 gIncluded Accessories: none