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NKG-660
The system uses the industry standard CAN bus communication, causes the system to run more stable and reliable * Power on self-test function to ensure that the data transmission is correct · Control panel LCD screen display system settings and working status, more intuitive and humane `USB key to run green computer software for operational control, safer and more accurate and stable Intelligent video auto tracking function 4 + 4-channel video matrix function, which can exchange 8-way high-speed ball video signal A variety of cloud billiards control protocol, highly compatible * A variety of control settings: unit control, ball control, venue control · Fully independent system output Total volume adjustment, background music input volume adjustment, microphone input level adjustment · Equipped with parallel audio output interface, 6.3 Unbalanced output and lotus-style conference process recording output interface · Data communication interface: RS-485 RS-232 / RX RJ-45 (keyboard interface) · RS-232 Pc software interface The main equipment of the system are: central processing unit, microphone attendance unit, keyboard control unit, high speed PTZ camera unit, USB encryption key to run green computer management software.
Conference system series
Technical Parameters
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NKG-660 Host:
Power supply: AC 220V / 50Hz
Maximum current consumption: 60mA
Sensitivity: -15dB
Frequency response: 20-20KHZ
Signal to noise ratio: 80dB
Size (W * D * H): 485 * 640 * 88mm
Weight: 12.7KG
Color: silver gray
Installation: 19-inch standard cabinet
NKG-660C / D:
· Electronic sign, vote, election, scoring function
The novel appearance not only maintained the traditional stability but also joined the modern science and technology elements
· Large screen shows the result of voting
High-definition liquid crystal display microphone on / off status and dynamic level and volume control
8 seconds automatically flip screen to improve the monotonous and rigid microphone
· Various operating modes, electronic switch control volume adjustment
Built-in single-chip control circuit, to achieve digital management
· High-speed PTZ camera automatic tracking shooting
· Use long life, no noise touch switch
· 315 degree single-section unidirectional bending stainless steel hose
Built-in high-fidelity audio head, so that sound is good, high definition, low noise
Efficient anti-whistle suppression function, super pickup effect
• When the microphone is on, the sound red work indicator lights up
· The chairman unit is not subject to any restrictions at any time to close the representative unit, fully display the right to speak
Built-in speakers: φ40mm, 4Ω 1W * 2

Technical Parameters:
Power supply: DC 24V
Maximum current consumption: 48mA
Sensitivity: -50dB / Pa
Frequency response: 100-12.5KHZ
Signal to noise ratio: 65dB
Size (W * D * H): 200 * 65 * 53mm
Weight: 0.9KG
Color: black and blue
Install: move
NKG-660QC / QD (embedded):
The novel appearance not only maintained the traditional stability but also joined the modern science and technology elements
· A variety of work patterns
Built-in single-chip control circuit, to achieve digital management
· High-speed PTZ camera automatic tracking shooting
· Use long life, no noise touch switch
· High temperature paint process, will not use the time / environment and other factors change or paint off
· 315 degree single-section unidirectional bending stainless steel hose
Built-in high-fidelity audio head, so that sound is good, high definition, low noise
Efficient anti-whistle suppression function, super pickup effect
• When the microphone is on, the sound red work indicator lights up
· The chairman unit is not subject to any restrictions at any time to close the representative unit, fully display the right to speak

Technical Parameters:
Power supply: DC 24V
Maximum current consumption: 48mA
Sensitivity: -50dB / Pa
Frequency response: 100-12.5KHZ
Signal to noise ratio: 65dB
Size (W * D * H): 170 * 50 * 4mm
Weight: 1KG
Colour: Black
Install: move