Smart nano blackboard is the integration of intelligence, multi-machine in one, integrated blackboard, touch all-in-one machine, audio, computer, projector in one, Smartboards For Education, Displays Commercial , Lcd Advertising Display , Commercial Touch Screen Display ,Floor Standing Advertising Display . We sincerely welcome friends from all over the world to cooperate with us on the basis of long-term mutual benefits. The product will supply to all over the world, such as Europe, America, Australia,Uzbekistan, Colombia,Adelaide, Melbourne.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;