smart board interactive whiteboard. The influence of the old order, the advanced capitalist countries manipulated the international market, lowered the prices of primary products, raised the prices of industrial products, worsened the conditions of foreign trade in underdeveloped countries and regions, leading to backward social productivity, uneven regional economic development , education and technology. Relatively backward , the science and technology of economically underdeveloped countries and regions cannot keep up with the ever-changing changes in modern science and technology. Therefore, it is difficult for the interactive electronic whiteboard products with high technology content to be recognized by the consumers in the short term. The interactive whiteboard market needs further development in economically underdeveloped countries and regions.. 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.