... OS 4.Multi Points:2/4/6/10/16/32 5.Factory,32-250 inch Multi Touch Screen --Basic Specifications Touch Technology ... recognition2 points,4 points,6 points,10 points,16 points,32 pointsOperating Voltage 5.0V(Internal voltage 3.3V)Average Current ... Mode),TUIO AdobeFlash Mode(TCP Mode)Win 7 Multitouch HID protocolSupport Platform Windows 7/8 ,Windows Vista , Windows XP,MAC OS,etcGeneral suitable LCD Size ...