The HCM03SE omnidirectional condenser capsule headset microphone, is ideal when minimum visibility is required. Available with 3.5mm mini jack.

Specifications:

Diaphragm Diameter  :   5   mm(0.197inch ) 
Maximum SPL for 1% THD  :   130   dB
Self Noise  :   20   dB-A
Nominal Impedance  :   2000 Ohm +-30%
Recommended Load Impedance  :   2000   ohm
Power Supply  :   1,5 - 10 volts 
Accessories  :   windscreen