whiteboard classroom. To minimize the teachers of himself, "beware" , the researchers sincere dealings with every teacher , honestly treat every teacher curious inquiry , including their own experiences, their studies , but also try to be done casually chat with them In order to draw closer to the teachers , it is also close to the teachers' truth.. 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.