The microphone shall be a headset microphone with an electret-condenser capsule and cardioid polar pattern. The frequency response shall reach from 40 Hz up to 20 kHz and the output level shall be 1.9 mV/Pa. The microphone should contain a snap-on windscreen.

Frequency Response: 40 Hz - 20 kHz
Output Impedance: 150 Ohm
Output Level: -54.5 dBV/Pa (1.9 mV)
Net Weight: 60 g (without preamplifier)