Feature: 1. [Programmable LED Backpack] This backpack features 48x48 full color LED matrix screen, allowing for text, images, GIFs, and more. Connect via Bluetooth to for LOY EYES APP for free editing of text, animations, and images, creating a stylish and cool look. 2. [Reliable Design] The shell is made with ABS, PC, 1680PVC materials, waterproof and aerodynamically designed, breathable sponge shoulder and shoulder straps make it more comfortable to wear. The shoulder straps are adjustable for personalized comfort, and the chest button enhances safety during motorcycle rides. 3. [Ample Storage Space] With large zippered pocket to fit laptop or tablet, and multiple internal compartments for storing items like tissue, key, phone, and umbrella, this LED backpack offers convenient organization for various items. 4. [USB Powered] The LED backpack requires connection to a power bank for LED display, with a built in USB data port on the back for power supply (power bank not included). 5. [Versatile Usage] Ideal for travel, hiking, or motorcycle riding, this LED backpack is a cool and stylish accessory suitable for various scenes and activities. Specification: Item Type: LED Backpack Material: ABS, PC, 1680PVC APP: for LOY EYES APP Power Supply: USB Interface Communication Method: Bluetooth Left Right Eye Screen Resolution: 48x48 Pixel Pitch: P2 Size: Approx. 44x34x18cm / 17.3x13.4x7.1in. Package List: 1 x LED Backpack