... papers, books, lesson plans and other information at the presentation pad.4.The professional visualizer software bring more vivid for ... , papers, teacher courseware and student work as well as 3D objects; Achieve the screen zoom in/out and rotation; ... /PNG/RASVideo format AVI/WMVInterface USB2.0LightNatural and LEDPackage ContentsVisualizer, Presentation Pat, CD-Rom, USB2.0 cable, Users Manual (V520 ...