whiteboard roll manufacturers. Into technology, no complicated construction is required. The whole system includes a computer unit, a central control unit, a display unit, an interactive touch unit, a wireless display unit, a wireless audio unit, an amplifier audio unit, a writing unit, a network unit, etc., and only two power lines and one network cable are needed. Implement all applications. It supports local and remote multi-platform applications' to provide students with the means to acquire knowledge in all aspects before and after class, online and offline, so that teachers can push high-quality fresh shouts without time and space constraints, and the competent authorities can manage them in real time.. 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.