A smart nano-blackboard is also called a nano-blackboard all-in-one machine. It is generally divided into 65 inches, 75 inches, 85 inches, 86 inches, 98 inches, 100 inches, and 110 inches. Ordinary blackboards have a lot of dust, causing air pollution and endangering the health of teachers and students. Genee Interactive Board, Restaurant Menu Display Board , Indoor Advertising , Commercial Touch Screen Display ,Android Kiosk . For more info, be sure to call us as shortly as possible! The product will supply to all over the world, such as Europe, America, Australia,Ghana, Paraguay,Haiti, Germany.Using the kiosk ordering system, you can have the "four provinces" function