CM15P and CM20P Specifications7SpecificationsElement Type Fixed-charge condenserPolar Pattern Cardioid (Uni-directional)Frequency response 60 - 16000HzSensitivity -40dB/PaRated impedance 600 ohmsSPL 127dBDynamic range 103dBS/N ratio 70dBPower Supply 9~52V phantom supplyPower consumption 4mA