32CM Advertising 3d Hologram Led Fan, Display Backpack Wifi Mobile App Display Holographic Fan High Brightness

1. It is illuminated by the led lights on the fan blades,it uses the principle of persistence imaging of human eye ,the fan has its own play system 2. After plugging in the power, it will automatically play the content in the memory card, because the black background is not displayed,the video with a black background has this suspended 3D effect 3. Because the black background is not displayed,the video with a black background has this suspended 3D effect 4. It's very suitable for store advertising and drainage 5. The rpm is 1100