... :30″ ~ 110″ConstructionFrame: aluminum, die-cast zincPCB: FR4 fiberglass printed circuit boards, tempered glass, etc. PC connection5m USB cableTouch technologyOptical ... )Operating systemWinXP, Win7, Win8, Vista, Linux, Mac OSBasic functionsClick, double click, mouse function of right key and left key, etc ... year parts and technical support Finger multi-touch smart board with size from 30inch to110inch