Full-Color LED Backpack - Programmable Dot-Matrix Display Laptop Bag (Walking Billboard)

Full-color LED backpack constructed from waterproof cloth with an integrated full color dot matrix screen. The display is programmable from your smartphone: upload pictures and GIFs or use the APP to draw custom images and text for holiday greetings, travel, work promotions, advertising or hiking. Built to last with waterproof, scratch-resistant materials and a modern look. Comfort features include adjustable wide shoulder straps and a mesh back panel for breathability, stability and prolonged wear. Large-capacity main compartment with expandable storage to hold bottles, books, documents, wallets, pens, cell phones, tablets, mobile power, laptops and more — a reliable companion for daily work, study and travel. How to use: 1.Connect your power bank 2.Download the APP 3.Connect Bluetooth 4 .Start Using (Please refer to the manual for using this product) We offer 12 months warranty and 24/7 customer service. If you have any questions about the product, please contact us.