Name: 3D Hologram Fan/3D advertising Projector Size: 45CM Overview A holographic advertising display designed for visibility installations. The device creates borderless 3D images using the persistence of vision principle and supports synchronized audio playback for a combined visual and sound presentation. Suitable for shopping malls, hotels, KTV, speed rail, airports, banks, technology exhibition halls, and convention and exhibition centers. Key benefits Eye catching 3D visuals that increase engagement: spinning LED blades produce apparent floating images with no visible borders or background, helping content stand out in busy environments. Dual sensory presentation: Bluetooth audio support and visual playback enable synchronized sound and imagery to deliver a more immersive message. Broad content compatibility: accepts common video and image formats for simple playback and easy content updates. Ready for installation and connection: packaged components include brackets, accessories, and routers for straightforward setup when ordered as a set. Main features 3D visual effect: speed rotation uses human eye persistence to form clear, borderless images. Audio support: Bluetooth audio capability allows sound playback alongside video or animation. File format compatibility: MP4, AVI, JPG, PNG supported. Compact footprint: Size 45CM for flexible placement in public and commercial spaces. LED density: 576 lamp beads per lamp for detailed image reproduction. Efficient power: single rated power 48W. Electrical output specification: 24V2ATF. Technical specifications Display dimensions (mm): height 1181, width 487 Total height (mm): 1171 Number of lamp beads per lamp: 576 Single rated power: 48W Output voltage: 24V2ATF Bluetooth audio: support Video and image formats: MP4, AVI, JPG, PNG Package contents 1 x 3D Hologram Fan Packaging note Each set includes 3 19inch holographic fans, plus brackets, accessories, and routers for seamless connection. Typical applications Retail mall display: showcase product features or promotions in a central atrium to attract foot traffic and increase dwell time. Airport or rail concourse advertising: present brand messages or wayfinding content that is visible from multiple angles and distances. Exhibition booths and hotels: deliver impact demonstrations or brand visuals that complement live presentations and staff interaction. Why choose this model This 3D hologram fan combines clear, floating visuals with audio playback and wide file format support to make content deployment straightforward. The device is suited to locations that require attentiongrabbing displays with a compact installation profile and reliable LED performance. Compatibility and installation notes Supports common video and image formats for direct playback. Bluetooth audio simplifies pairing with local content sources. Set packaging provides mounting hardware and routers to facilitate installation in exhibition or commercial environments.