... 1. Two point touch Gesture control: screen moveable, previous page, next page, select, rotate, zoom in/out, eraser.2. ... traditional chinese brush, high light pen( semi-transparent color for remark or anotation), magic pen ( turn handwriting figures like ... Screen cover.15. Background for teaching: black page, green page, letter paper, football field, basketball field, Staves for music and users can add ...