3D Hologram Fan Ultra HD 722 LED Support Phone APP PC WiFi Holographic Advertising Display with Remote 100‑240V 24.2in UK Plug Item Type: 3D Hologram Fan Material: Plastics, Electronics Display Diameter (MM): Approx. 615 x 615mm / 24.2 x 24.2in Resolution: 2000 x 1444 Number of Lamp Beads: 722 Rated Power: 72W Memory Card Storage: 16GB (Included) BT Sound: Support Video Picture Format: MP4, AVI, JPG, PNG Software Support System: Cell Phone APP, Computer Wireless Screen Casting: Support Brightness Adjustment: Support Angle Adjustment: Support Multi Splicing: Support Timed Playback: Not Supported Product Features: BT Sound, Multiple Splicing, Wireless Screen Casting, High Definition Display, App Customization, Power On Customization, Multiple Synchronization Battery Type: Remote Control Built in CR2025 145mAh Button Battery