Design Features 1.Nano intelligent blackboard, the combination of traditional blackboard and multimedia teaching equipment to create a new interesting and interactive teaching mode. 2.The ultra-thin body, delicate and beautiful (with a patent certificate for appearance) and thoughtful design of rounded corners provide safe and reliable escort for students. 3.Micro magnetic high hardness aluminum honeycomb attached board, surface hardness of 8H writing on the board clear and smooth, erase, clean the writing without leaving a mark. 4.Front functional interface, support Word, Excel, PPT, PDF, video, picture, music and other document formats...