... no light points. Fast response.* No correction, drive-free. Easy maintenance* Single-point touch, Multi-touch, hand ... can be selected per customer application.* Free upgrade, provide Tang Hftouch download website.* Accurate synchronous with connecting computer.* ... ,Support PaintingOthersGoogle Browser, Google APPGoogle Market/APP Store download APK and gamesCalculator, Calender,Google Map,Email, Office ...