High-fidelity SoundHigh-fidelity and low-noise processing chip is used to effectively suppress the environmental noise and high-frequency interference sound through multiple frequency selections. The echo eliminates the cavity, effectively reduces the severe echo in the empty room, and achieves good radio reception. | Easy and Simple to InstallThis security microphone for CCTV security camera which did not included the microphone, like Hikvision/ Dahua/ Amcrest/ Foscam/ Dericam AHD/HDCVI/HDTVI/960H CCTV Camera, DVR, VCR, TV, WiFi IP Camera and low-frequency amplifiers. | CCTV Microphone for Security Camerahis tiny microphone allows you to monitor or record scrip and clear audio up to 30ft away around the mircophone position. Pick up every sound with this super high gain micro audio microphone. |