Element: Electret condenser
Polar pattern: Uni-directional
Frequency response: 20Hz-20KHz
Sensitivity: -45db +/- 3db
Output impedance: 1800 ohms +/- 30%
Max. input SPL: 135db
Power supply: 2.5-12V DC
Cable: 1.5mm *1m
Colour: Skin
Accessories: Windscreen

Optim HD-01 Headworn Single-Ear Microphone Skin-Colour