The microphone shall be a subminiature electret-condenser microphone with omnidirectional polar pattern and a frequency response from 20 Hz up to 20 kHz. The microphone shall provide interchangeable equalization caps and windscreens as well as; extensive mounting material shall be included. Output Level: -55 dB/Pa (1.7 mV) MC50: -41.0 dBV/Pa (8.9 mV) Maximum Sound Pressure Level (at 1 kOhm load, 1% THD): 143 dB SPL Diameter: 5.8 mm Net Weight: 188 g