Holographic Fan DisplayImpress your guests with this Holographic Fan Display. Its 41 cm diameter and 640*640 resolution will provide a vivid display. Multiple functions are available to the user, such as a text ball, speed adjustment, and a high definition non flickering screen. Use the memory card, mobile app or computer to control the display and you can use this in a variety of applications, such as shops, restaurants, malls, and conferences.