Smart nano blackboard is the integration of intelligence, multi-machine in one, integrated blackboard, touch all-in-one machine, audio, computer, projector in one, Indoor Digital Advertising Screens, Menu Board Software Free , Lift Screen Advertising , Lcd Advertising Board ,Digital Menu Board Software Free . Our company eagerly looks forward to establishing long-term and friendly business partner relationships with clients and businessmen from all over the world. The product will supply to all over the world, such as Europe, America, Australia,Los Angeles, Greece,Romania, Angola.Save time three times. Save time for customers to queue up, and save time for merchants to order and cashier, so that merchants have more time to entertain more customers and increase restaurant revenue;