... * Single-point touch, Multi-touch, hand gesture recognizable, drag, draw-line, rotate, zoom in/out* Long lifetime: 11years, above 60000000 times ... , include images, flash, video files. Microsoft Office file.* Annotation function on Microsoft Office PowerPoint and Word file.* Sound and Video recording ... multi touch screen smart white board tv / IBW (all in on pc tv) slim with usb, wifi optional