Shure WBH54B Headset Microphone

High sensitivity black condenser headset microphone, with supercardioid pick-up that attenuates the perception of environmental noises.
It is fully adjustable and almost invisible thanks to its ultra-thin design.
Type: Capacitor
Frequency Response: 50 to 20,000Hz
Polar model: Supercardioid
Output Impedance (RPM627): 160 Ohm
Sensitivity (at 1kHz, open circuit voltage): -56.0 dBV / Pa (1.58 mV)
Maximum SPL (1kHz at 1% THD): 152.5dB
Signal-to-Noise Ratio: 55.0dB
Dynamic range (at 1kHz): 109.4dB
Self Noise (equivalent SPL, A-weighted, typical): 43.1 dB
Power Requirements: + 5V DC