Threedimensional holographic display that enhances attention and visual impact for advertising and information presentation. WIFI content transfer with remote content replacement and upgrade capability, enabling easy updates without onsite hardware changes. Small, portable size and easy installation, enabling deployment across a wide range of environments and applications. Wide applicability for cinemas, airports, shopping malls, subway stations, city advertising, exhibitions, and other public venues. Clear image quality with simple advertising content replacement; supports common images, animations, and image displays. Use scenarios: Cinemas: run promotional clips or venue advertisements to capture audience interest. Airports: display dynamic announcements, wayfinding, and targeted promotions for arriving and departing travelers. Shopping malls, subway stations, and exhibitions: deliver timely product promotions, brand campaigns, and event information with easy content updates.