Feature:1. 3D Hologram Fan: This double leaf holographic fan features transparent sealing to prevent scratches and dust. Noise pollution can be reduced to a minimum of 18 decibels when using the protective case, giving you peace of mind and convenience2. 3D Stereoscopic Effect: Utilizing high density LED rotating imaging, this display device presents a 3D visual effect. With 576 high brightness LED beads, the image quality is clearer, creating a better light source for a more pronounced 3D stereoscopic effect3. WiFi Connection: Compatible with WiFi, this 3D holographic fan can transfer and load 3D display. No need to worry about location restrictions limiting access to files. After accessing the 3D image database, the device can extract files and play them instantly via WiFi4. Transparent Acrylic Cover: The transparent acrylic cover gives your display a clean and modern look, elegantly showcasing your exhibits. Featuring a excellent motor, the fan reaches a speed of 1350rpm with no screen flickering, so you can use it with confidence5. Portable and Versatile: The lightweight 3D holographic fan is easily portable and can be part of home decor. It can be placed anywhere in the house, office, or shop, or mounted on the wall, creating a great light source and more distinct 3D stereoscopic effectsSpecification:Item Type: 3D Hologram Advertising MachineBT Speaker: SupportVideo Image Formats: MP4, AVI, JPG, PNGSoftware Support System: Phone APP or ComputerBrightness Adjustment: SupportAngle Adjustment: SupportTiming Playback: Not SupportMultiple Synchronization: SupportSmall Memory Card Storage: 16GB (Built in)Product Features: BT Speaker, HD Display, APP Customizable, Start up Custom, Multiple SynchronizationRemote Controller Battery: 145mAH CR2025 Battery (Built in).Package List:1 x 3D Hologram Advertising Machine1 x Adapter2 x Screws2 x Expansion Tubes1 x Screwdriver1 x Remote Controller1 x User Manual