online whiteboard solutions. In the domestic and international markets, the interactive whiteboards of foreign brands mainly include the British ACTIV Board, Canada's Smart Board, the US Webster, Japan's Star Board series products, etc. Currently, there are various interactive in the domestic brand market. Electronic whiteboards are available, such as the IP board of Shenzhen Julong Company and the interactive whiteboard products of HiteVision, which are all domestic brands with independent intellectual property rights. In addition, Tsinghua Tongfang's interactive whiteboard Yulong electronic whiteboard, Changchun Jida Boshuo Technology Co., Ltd. patented product DM series interactive wireless positioning whiteboard, Beijing Guowei Shiyuan Technology Development Co., Ltd. Rain Board interactive back Vote for electronic whiteboards and more.. 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.