Digital Conference System Microphone
SP-CS819,SP-CS820 Digital Conference System Microphone Features:
Frequency response: 40Hz-16kHz
Sensitivity: -44 dB±2dB
Dimension: 205x117x55mm
Length of gooseneck: 420mm
N.W: 0.9kg
Discuss & video 
Built-in inner speaker & LCD
Chairman with priority button

             
            
            
              
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                Operation Manual: