Feature: 1. LED Backpack: This motorcycle backpack with a 3D hard case design has a pair of mysterious dreamy eyes. When you wear it in a crowd, you'll become the center of attention, just like a scene from a movie. 2. Dazzling (POWER): The smart backpack with a display screen can connect to the for SPOTLED APP, allowing for free editing of text, animations, and images. Please note that this product does not include a power bank due to transportation restrictions. 3. Multi Functional: Measuring approximately 19.69 x 15.75 x 7.87 inches, the LED backpack offers ample storage space. The large zippered pocket can serve as a laptop bag, accommodating a tablet. Internally, there are multiple separate compartments for storing cosmetics, tissues, keys, textbooks, phone, umbrella, sports equipment, etc. 4. Material: The LED smart backpack features a 3D hard core waterproof exterior, with the back width made of 1680pvc and a 60x96 full color dot screen supporting text, images, GIFs, etc. The shoulder strap size is adjustable, and the back is made of breathable material. 5. Cool Gift: The LED backpack with a programmable screen is the perfect gift choice for Christmas, birthdays, or Valentine's Day, whether for yourself or someone special. 6. Safety and Comfort: LED knight backpack is made of ABS PC 1680PVC materials. It is waterproof and aerodynamic. The shoulder straps can be adjusted according to your needs, and they are made of breathable sponge material. The buckle design on the chest enhances safety during cycling. Specification: Item Type: LED Backpack Material: ABS, PC, 1680PVC Application: for SPOTLED APP Supported Systems: for Android, for iOS Power Supply: USB Interface Communication Method: BT Left Eye, Right Eye Screen Resolution: 60x96 Screen Pixel Pitch: P2 Size: Approx. 19.69 x 15.75 x 7.87in / 50.01 x 40.01 x 19.99cm . Package List: 1 x LED Backpack