Cardioid condenser clip-on instrument microphone, Frequency Response 50 - 15,000 Hz, Open Circuit Sensitivity -45 dB (5.6 mV), Impedance 250 ohms, Max. Input Sound Level 145 dB SPL, Low Frequency Roll Off 80 Hz, 18 dB/octave, Dynamic Range 115 dB, S/N Ratio 64 dB, Phantom Power 11-52V DC, 2 mA typical