interactive whiteboards in secondary schools. One benefit of choosing the Surface Hub is that it comes with native Office 365 apps out-of-the box, bringing users the full Microsoft ecosystem. In addition, the ink to shape and ink to table allow for clean, crisp whiteboard collaborations. The functionality of the Pen with pressure sensitivity and opposite end eraser, along with the ability to undo/redo actions and select objects to move, takes the entire whiteboard experience well beyond its competitors. As for security, Surface Hub auto-deletes all user content at the end of each session.. 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.