Advertising machine

Using modern communication, cloud s‌‌βγerver, distributed system, intelligent dis¶δplay and other technologies, thr→Ω♠ough the network (wired / wireless) transmi©​ssion of audio and video, images, text, plug-in≠λπ✘ Mini Programs (weather, ex>♣ ∏change rate, etc.) to th¥☆ e dis