... solution,Low power consumption 7.1'' PDA, GPS 4 Wire Touch Screen Panel KitTouch Screen kitLCD Touch Panel1.Size: Mass produce 1.0'' to 22''2.Power ... Dual-touch(2 points), 6 points, 8 points, 10 points, 16 points and 32 points, No ghost point. Etc 7.1'' 4 Wire Touch Screen Panel ...