Conference System, Conference Microphone, Matrix Switcher manufacturer / supplier in China, offering Vissonic Gooseneck Microphone Cat5 Cable Connection Digital Discussion Chairman Unit of DSP Network Conference System, Mixed Matrix Videowall Controller Support Multipl Type DVI, VGA, HDMI, Hdbaset, SDI, AV (CVBS), Long Distance Sound Pickup Digital Array Microphone Conference System Microphones and so on.
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