digital whiteboard staples. With the development of multimedia-assisted teaching hardware and software, electronic whiteboards have entered the classroom more and more widely. It is convenient, fast, and vivid, which brings a lot of convenience to the teaching, makes the classroom richer, and is in teaching. Has achieved certain results. However, everything has two sides, and the whiteboard is no exception. As the whiteboard assisted teaching continues to deepen in the classroom, its problems are gradually becoming apparent.. 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.