digital whiteboard alternative. 5 , intelligent drawing, improve efficiency. The electronic whiteboard provides various intelligent tools such as compasses, corners, smart, and circle. The teacher does not need to use other tools. It is very convenient to draw a very professional and accurate graphic in the electronic whiteboard with a pen.. 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.