Led Backpack with Programmable Full Color Screen, Motorcycle 。LED Backpack With DIY Programmable Full Color Screen, Hard Shell Large Capacity Waterproof Helmet Bag Laptop Backpack item 【DIY Freely】The travel backpack with LED display screen, you can DIY text, animation and pictures as wish according your mood and needs. It is suitable for traveling, hiking, riding, commuting, outdoor etc. 【Large Capacity 】Size of LED backpack is about 18*7*13 inches with a expandable storage, a large zipper pocket and several independent small compartments, so it can easily hold helmets,laptop, cosmetics, tissues, keys, wallets, books, phones, umbrellas etc. 【Material】Smart motorcycle backpack made of 3D hard shell waterproof, scratch-resistant materials.Design with 2 safe buckles, breathable back material,Reflective Strips, adjustable shoulder strap. Safety riding with the backpack in any time. 【Easy to use only 3 Steps】1:Connect the power bank 2.Scan code and download the APP 3. Use it according to the instructions(Every backpack equipped with instructions manual)