AKG HC 577 L - condenser headset microphone with CK 77 capsule.

Omni-directional, frequency response: 20Hz-20kHz, 133dB SPL (max), requires 1.5-12V phantom power, adjustable microphone arm and boom, water and sweat resistant, compatible with all AKG wireless systems, boom arm can be switched for left and right use, skin coloured.