small whiteboard online. Compared with domestic whiteboard companies, there is a big gap. The extent of its sales comes from participating in various high-tech fairs and educational exhibitions to promote its products. However, this method is very simple and straightforward, but the problem is that it is difficult to expand the company's market share in the absence of marketing network construction. This is the biggest problem for the company in the future. The advancement of technology does not represent the acceptance of the market. At present, the mainstream of electronic whiteboard in the domestic market is still an old product of resistive film technology and electromagnetic induction technology, but the price is relatively low. Can the company firstly adopt the resistive film technology and electromagnetic induction technology products to first occupy the colleges and universities with low consumption but concentrated application, and then accumulate strength to the third generation of products, which is a problem worthy of management thinking.. 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.