white marker board buy online. Combine projectors, computers and other tools to achieve functions such as dust-free writing, random writing, and remote communication. In terms of hardware, the interactive whiteboard combines large-screen projection technology and precise positioning test technology. At this stage of the international or domestic market, there are a variety of technologies that can achieve accurate positioning of electronic whiteboards, representative of electromagnetic induction, infrared, resistive film, ultrasonic, CCD , laser and other technologies.. 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.