● COTT-QD55 circular HD audio monitoring microphone, 360°monitor pickup, capture the surrounding small sound.
● The structure of new housing and metal net design is simple and fashion, to make an impression.
● Hi-Fi silver plated vibration membrane capacitor microphone, 10~100㎡ in high definition, high fidelity and high sensitivity.
● Built-in AGC and DTS noise reduction signal processing circuit, automatically adjust high strength voice and instantaneous impact sound.
● Built-in newest DNP and DSP digital processing unit, enhance sensitivity to highlight human voice.
● micro adjustment potentiometer, has a keen front sensitivity, its back snap-in type meet a variety of environmental installation.
● The echo cancellation technology of international leading level, effectively reduce serious echo of empty room.
● ATDA dynamic noise level detection, adaptive bandpass filter, effectively prevent the speech signal distortion and attenuation.
● Long audio signal transmission technology, use the RVVP3*0.5mm2 shield cable, it is distortionless within 3km.
● Integrated professional front audio amplifier circuit, direct drive active speakers, DVR, earphones, etc.
● Widely used in banks, schools, interrogation room, prison and other environment for synchronous video audio monitoring recording.
Guangzhou Sizheng Electronic Technology Co.,Ltd.
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