whiteboard marker manufacturers. OLE technology designed application ( OLE server) can control other multimedia hypertext applications, combined with WOE board software system, can embed or link multimedia components such as text, graphics, images, audio, animation, video, etc. to the current In the teaching demonstration, it is presented on the WOE board to realize the interaction and sharing of resources.. 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.