Fostex MC 32, Electret Condenser Microphone, Cardioid / Super-cardioid, Wide Frequency Range, Low Distrotion, Right weight (aluminum housing), Changeable polar pattern (Cardioid/Super-cardioid), 2 way powering (phantom / battery). Specifications, Frequency response (@ 1kHz/+/-10dB) : 70Hz to 16kHz (Cardioid), 200Hz to 16kHz (Super-cardioid), Sensitivity : -72dB +/-3dB (Cardioid), -55dB +/-4.5dB (Super-cardioid), Impedance : 250ohm, Power : Phantom (9V to 52V), Battery (1.5V), Dimension : 22mm(diameter) x 302mm, Weight : 150g