HST-01A High performance FET condenser MIC Frequency range: 30hz--20khz Sensitivity: -40dB+/-2dB( 0 dB=1V/Pa 1000hz) Output impedance: </=200 ohm Direction: Cardioid, Diversity>/=12dB(100hz) Equivalent noise level: </=24dB( A weighted) Power supply: 48V Phantom