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. Commercial Digital Signage, Digital Menu Board Powerpoint , Digital Signage Menu Boards , Floor Standing Display Board ,Wall Digital Display . We welcome new and aged buyers from all walks of daily life to get hold of us for upcoming business enterprise interactions and acquiring mutual good results! The product will supply to all over the world, such as Europe, America, Australia,Milan, UAE,Liberia, Manchester.People from a province. The function of a self-service ordering machine not only realizes self-service ordering, but also self-payment, which can replace the original work of one or even several staff members, and can save a lot of manpower;