... ,USB 4.CE certification MIC,audio,speaker,VGA and network conference room wall socket product details: Size:Color : black,silver Material: ... alloySurface treatment:sandblast,drawbenchPanel: 86mm*258mm Application: fit for office,conference room,fix on tabletop Interface: power 100V-240 VAC 50/60Hz ... certificate: ( JS-WP301 customized ) MIC,audio,speaker,VGA and network conference room wall socket