● COTT-QD50 Dome audio monitor specially designed for public security organs and procuratorate industry of synchronous monitoring recording.
● Using UniGuard RFI shielding technology, prevent radio frequency interference, control noise of surrounding environment.
● Adopt cross spiral type sound hole, its internal resonance spoke after precise calculation, the sound is more clearly.
● Using honeycomb type to eliminate reflex phase distortion, control the echo, provide clear and high quality audio signal output.
● Using directional logic dolby surround sound system, built-in high-speed voice processing units, two level dynamic noise reduction processing.
● High fidelity silver plated vibration membrane capacitor microphone, 10～150㎡ in high fidelity, high sensitivity, and low noise.
● Built-in AGC and DTS noise reduction signal processing circuit, automatically adjust high strength sound and instantaneous impact sound.
● Unique design of the "electronic noise dynamic closed loop suppression circuit", completely eliminate "hiss" electronic noise.
● Built-in lightning protection, power supply polarity reverse connect protection, ESD protection and power protection module.
● Long audio signal transmission technology,use the RVVP3 x 0.5mm2 shield cable, it is distortionless within 3km.
● Integrated professional front audio amplifier circuit, direct drive active speakers, DVR, earphones, etc.
● Applicable to public security organs interrogation room, prisons, finance, education and other places of synchronous audio monitoring recording.
● Gain patent certificate of State Intellectual Property Office of The People's Republic of China.
● Gain computer software copyright of National Copyright Administration of The People's Republic of China.
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