... Technology Infrared Touch,write or touch by finger, pen, teaching pointer or any other opaque object.2. Boarda. Writing ... :1. Two point touch Gesture control: screen moveable, previous page, next page, select, rotate, zoom in/out, eraser.2. Use ... .14. Searchlight, camera, Screen cover.15. Background for teaching: black page, green page, letter paper, football field, basketball field, Staves for ...