Features: The LED screen backpack features a programmable 64x64 multicolored display (25.6x25.6cm) for tradition animations, texts, and visuals. Produced from waterproof polyester/nylon, this 16.14x11.81x5.51 inch backpack protects your belongings and accommodates most 15.6 inch laptopss. Its ergonomic plan includes modifiable wide belts, reticulation back panel, and double storage compartments for organized transporting of books, devices. Powered through a internal USB port (power institution not included), the LED panel runs for 6+ time and syncs with a mobile application seriously time guidance updates during walking otherwise cycling. Improve observability and security with dynamic LED displays. Specifications: Product namemail: LED screen backpack Colorebog: black Dimensionsecond: 40 unknown 30 unknown 13CM Screen pixelsecond: 64 unknown 64 Screen sizemail: 25.6 unknown 25.6 CM Substancemail: Waterproof nylon/polyester Applicable circumstancesecond: travel, motorbike riding, daily use Agreement: Can accommodate most 15.6 inch laptops Charging connectparticlemail: USB port (for powering and charging devices) Product Features Programmable multicolored LED displhello: Freely set individualized messages, animations and patterns to distinctive fashion. Waterproof planumberebog: Constructed of excellent waterproof substance to protect your objects from rain. Comfortable transporting structuremail: Utilizing ergonomically developed belts and ventilated materials. Package Includes: 1 LED screen backpack note: Try to avoid using it in areas with high friction or uneven surfaces.