glass dry erase board. A large amount of dust has seriously affected the physical and mental health of teaching staff. In a general conference room or office, a whiteboard is used instead of a blackboard. A whiteboard pen replaces chalk. Since the whiteboard pen is different from chalk, it is written in ink and can solve the harm caused by chalk dust. However, a normal whiteboard, like a blackboard, can only serve as a carrier for displaying information, and cannot capture text or drawings on a board to make it a document that can be saved on a medium. If you want to save the contents of the panel, you can only rely on the conference. The personnel nervously recorded the contents of the meeting. Ordinary whiteboards can't realize timely communication in different places, so that people in other offices, conference rooms (whether in the same building, city, or around the world) can exchange information and share meeting information through the network. However, the electronic whiteboard can make up for the shortcomings of the above-mentioned ordinary whiteboard, and the electronic whiteboard can store text and pictures on the board surface, and can realize timely communication in different places. Electronic whiteboard technology is an emerging high-tech technology. At present, there are few companies that master this technology in China, and the market size of its products is rarely known in China. In view of this, this paper has carried out detailed research on the technical development and market demand of electronic whiteboard, hoping to provide some reference for its industry insiders.. The IQAio GR519 is an upgraded lightweight version based on the original IQAio GR511. The original dual-cavity structure was changed to a bottom-edge structure, so that the minimalist design accommodates modern classrooms and conference rooms. With one IQProjector V2 and one IQView E3821, you can achieve flexible and intelligent classroom.