Sosu nano smart blackboard 4K high-definition display, A+ LCD panel with brilliant colors, high-contrast high-brightness display resolution that can support up to 4KUHD, high-light filtering technology, filters out 85% of the light source that is harmful to the eyes, making the picture softer. Nano Blackboard Smart Class, Animated Menu Boards , Digital Wall Screens , Digital Concession Menu Boards ,Digital Menu Board Software Free . Thanks for taking your valuable time to visit us and look forward to have a nice cooperation with you. The product will supply to all over the world, such as Europe, America, Australia,Serbia, Greek,Jordan, South Korea.3Features of the 86-inch meeting and teaching digital touch screen whiteboard: 1. Integrated joint design, easy to assemble and disassemble. 2. Small and light, it can adapt to installation in a narrow space, handling, and assembly with high-precision density requirements. 3. There is no need to install safety fences, and it can integrate and cooperate with humans, robots, and the surrounding environment. "