Material- Metal Polar Pattern-Cardioid Frequency Response Rate-45Hz” 18KHz-L3dB Sensitivity->105 Uhf Professiona Wireless Microphone System T.H.D-<0.4% @ 1KHz Band Width-80MHz Operating Range -80-100M Modulation Mode-FM Carrier Frequency Range -UHF 470-937MHz Frequency Stability-+0.0005%Packing-Plastic Flight Case