Dual-Core Hi-Fi Digital Directional CCTV Microphone COTT-S20

  • Pickup Area: 1-5m (adjustable)
  • Transmission Distance: 3000M
  • Frequency Response: 20Hz~20KHz(90dB sound pressure, A weighting)
  • Sensitivity: -38dB(10.0mV e 1V at 1Pa)
  • SNR: 80dB(1m 40dB sound pressure) 50dB(10m 40dB sound pressure) 1KHz at 1Pa
  • Directional Property: Omnidirectional
  • Dynamic Range: 104dB (1KHz at Max dB SPL)
  • Equivalent Input Noise Level: 2.5Vpp/10dB sound pressure(A weighting)
  • Maximum Gain: 60db
  • Max Sound Pressure: At 120dB SPL, THD< 1% At 125dB SPL, THD = < 10%
  • Max Voice Output: 2.5Vpp/80dB sound pressure(A weighting)
  • Output Impedance: 600~1000Ω non-equilibrium
  • Output Signal Amplitude: 2.5Vpp/100dB sound pressure(A weighting)
  • Microphone: KaBoni advanced complementary enhance digital noise reduction microphone
  • Microphone Quantity: 2pcs
  • Signal Processing Circuit: Triangulation, DSP, ALC
  • Protective Circuit: Lightning protection, power supply polarity reverse connect protection, ESD protection
  • Connection Way: 3 leading wires(red power lead is positive wire, white audio lead is positive, black is public wire)
  • Transmission Cable: Telephone wire, network twisted pair, shield cable(pls use shield cable in complex electromagnetic enviroment)
  • Supply Voltage: DC9V~20V (recommend to use 12V, more than 500 meters recommended 15V)
  • Working Current: 30mA
  • Electromagnetic Compatibility: GB 9254-2008
  • Reliability Index: MTBF≧80000 hours
  • Working Environment: -25℃~75℃
  • Color: White
  • Housing Material: Advanced resin PVC+Double-deck metal stoving varnish net
  • Product Size: 77mm×45mm×25mm
  • Weight: 60g
  • Place of Origin: Guangzhou, China
  • Supply Ability: Spot goods
  • Approvals: CE, ROHS, FCC, ISO9001

Product Overview

● COTT-S20 dual-core hi-fi digital directional audio microphone, specially designed for open window, counter, processing hall and and other indoor environment.
● Using double-deck metal stoving varnish net with 3m super glue. The structure of the slider hanging tenon type design, easy to ceiling installation or stick on the window.
● Using KaBoni advanced complementary enhance digital noise reduction microphone, pick up sound high fidelity in 1-5m of a close range.
● Unidirectional or bi-directional sound pickup mode can effectively prevent noise interference of roads, market and traffic.
● Using "Triangulation" array technology multistage dynamic noise reduction processing, catch complete and clear voice.
● Integrated professional automatic noise recognition processing technology and AGC and DTS noise reduction signal micro processing circuit.
● Built-in DSP digital processing units and ALC microprocessor chip control circuit, automatically control high intensity sound.
● Built-in LED work indicator lamp, it can analyze whether the audio monitoring microphone operate as normal or not completely according to the indicator lamp.
● 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.
● Applies to -25℃~75℃ in the super environmental temperature, to ensure the quality of the back-end high recording effect.
● Integrated ASIC front audio amplifier circuit, direct drive active speakers, DVR, earphone, etc.
● Widely used in the window, counter, financial room, conference room, and other indoor environment for synchronous audio and video monitoring recording.


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