Sosu nano smart blackboard 4K high-definition display, A+ LCD panel with brilliant colors, high-contrast high-brightness display resolution that can support up to 4KUHD, high-light filtering technology, filters out 85% of the light source that is harmful to the eyes, making the picture softer. Lcd Whiteboard, Flat Screen Menu Boards , Touch Screen Floor Stand , Digital Wall Screens ,Digital Signage Wall Mounted . Hope we can create a more glorious future with you through our efforts in the future. The product will supply to all over the world, such as Europe, America, Australia,Swedish, Argentina,Qatar, Ottawa.Second, save trouble. With it, the restaurant can hand over the ordering and checkout links to customers, and customers don't have to wait for the waiter to order and check out, and it also saves the trivia of the waiter ordering the wrong meal;