Omni-directional condenser microphone, high fidelity. 30KV Air contact ESD, built-in Lightning Protection, power supply polarity reversal protection and electrostatic protection; Pinhole design, hidden installation; match with cameras or storage devices which have audio function. Scope: 5-40m2 Sensitivity: 40dB(-45~-20dB adjustable) Frequency response: 20Hz`a1`ab20kHz Directional characteristic : Omni-directional SNR: 70dB(1m 40dB sound source SPL) Dynamic range: 104dB(1KHz at Max dB SPL) Color: White
