The microphone shall be an extreme lightweight headset microphone with an electret-condenser capsule and omnidirectional polar pattern. 
The frequency response shall reach from 20 Hz up to 20 kHz and the output level shall be 2 mV/Pa. 
The Microphone should contain a windscreen and an interchangeable equalization cap.

Specifications
Frequency Response: 20 Hz - 20 kHz
Output Level: -54 dBV/Pa (2 mV)
Maximum Sound Pressure Level (1 kOhm load, 1% THD): 142 dB SPL
Output Noise (equivalent SPL): 33 dB(A)
Net Weight: 35 g