products Deshan company¡¯s serial products are through a number of technological innovation, and independent R & D and production of multimedia teaching products. Products include: Infrared Interactive Whiteboard Electromagnetic interactive whiteboard Video Showcase The interactive whiteboard should be connected with projector and computer, and have set up an interactive multimedia presentation system that can achieve the interactive information and communication between whiteboard and computer, and can be controlled interactively. With the support of specialized applications, through the board to operate, it can be designated to run applications, and can edit documents, comments and saving, etc. It can be widely used in teaching, training, conferences, presentations and other fields. With a photoelectric conversion technology and through CCD camera, Showcase video is a display device by a demonstration which will be transferred the material objects, manuscripts, photos, process images and other information into a signal output in projectors, monitors and other display devices.