Cardioid condenser hanging microphone, white version of U853A, Frequency Response 30 - 20,000 Hz, Open Circuit Sensitivity -42 dB (7.9mV), Impedance 200 ohms, Max. Input Sound Level 133 dB SPL, Dynamic Range 109 dB, S/N Ratio 70 dB, Phantom Power 9-52V DC, 2 mA typical, Battery Type 1.5V AA/1200hours, Weight 14g