... No correction, drive-free. Easy maintenance* Single-point touch, Multi-touch, hand gesture recognizable, drag, draw-line, rotate, ... above 60000000 times for single dot touch.* Toughened glass protecting, anti-knocking, water and dust proof, it can be ... and Word file.* Sound and Video recording and Playback Infrared multi touch screen monitor board (all in one) Specification: 15'' android OS multi touch ...