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 Displays, Retail Menu Boards , Street Screen Advertising , elevator digital signage ,Digital Advertising Screen . We are willing to give you the best suggestions on the designs of your orders in a professional way if you need. In the meantime, we keep on developing new technologies and creating new designs so as to make you ahead in the line of this business. The product will supply to all over the world, such as Europe, America, Australia,Russia, Bolivia,El Salvador, Mozambique.3. Use the floor stand digital signage to enjoy watching or playing your video, audio, or picture playlist anytime and anywhere. Update your digital content in our powerful built-in media player via WIFI or USB. Easy-to-follow on-screen menus make it easy to plan content without complicated configuration.