Smart nano blackboard is the integration of intelligence, multi-machine in one, integrated blackboard, touch all-in-one machine, audio, computer, projector in one, Multimedia Interactive Whiteboard, Restaurant Menu Board , Digital Signage Display , Window Screen Store ,Digital Menu Boards . Please send us your specifications and requirements, or feel free to contact us with any questions or inquiries that you may have. The product will supply to all over the world, such as Europe, America, Australia,Georgia, Florida,Amsterdam, Belarus.Four save money. Reduce labor costs, improve ordering and delivery efficiency, and thus achieve a win-win situation of "restaurants save money and make money, and customers are simple and convenient".