... Touch Screen1.Size: Mass produce 1.0'' to 22''2.Power: USB 3.Low cost solution, Low power consumption4.Free warranty 1 ... location without failure;· Drift free, Deviation of Error below 1.5%, suitable for the operation Works With The Operating Systems: Windows ... offer Dual-touch(2 points), 6 points, 8 points, 10 points, 16 points and 32 points, No ghost point. Etc 3.2'' 4 Wire Touch ...