The legendary SM81 is an industry-standard, flat-response cardioid condenser microphone, featuring a wide frequency response and low self-noise.
Transducer Type: condenser
Polar pattern: cardioid
Frequency response: 20Hz – 20kHz
Sensitivity (1kHz): -45,0 dBV/Pa / 5,6 mV/Pa
Equivalent selfnoise – 18dB(A)