... security,interactive whiteboard etc... *operating system:WINDOWS 98/2000/2003/ME/NT/CE/VISTA/XP/WIN7 LINUX /MAC*altitude: 3000m* ... Optical imaging touch technology is fully compatible with Windows 7 operating system of Mircosoft FeaturesExceptional accuracyRapid touch ... BInterfaceUSB 2.0(full-speed) Operating SystemsWindows 7,Windows XP,Windows Vista,Linux,Mac OS XLife Time5 years Guangzhou Hongcheng ...