Profile Super-cardioid studio microphone, hum compensating coil, five position bass control, brilliance switch, integral pop filter, frequency response 30 - 20,000 Hz, sensitivity (free field, no load) 1.8 mV/Pa ± 2 dB at 1 kHz, nominal impedance 200 Ohm, min. terminating impedance 1 kOhm, dimensions 270 x 33 x 36 mm, weight approx. 450 g.