SUPSBY26 LED Backpack with App Control City Serise, 17 Inch Cool DIY Pixel Art Animation Fashion Programming Laptop Backpack, Unique Gift for Men or Women

HOW TO USE - - You need to prepare a 10000mAh power bank. Built-in USB port (inside the backpack) to connect the power bank. Refer to the manual to connect and use the APP. A 10000mAh power bank can power the backpack for 6 hours. We do not provide mobile power.
Control by our APP -- LOY SPACE app can be used with this LED backpack. You can change all settings through the app, add your custom pixel art, or photo, or download other artworks/animations. The app is compatible with IOS and Android systems and is free to download from the Google Store or APP Store.
COMFORTABLE & BREATHABLE -- The adjustable shoulder straps and back are designed with a comfortable and breathable mesh relieving the strain on your shoulder. The comfortable foam pad babasis made with soft mesh padding with good heat dissipation, giving your back maximum back support.
LARGE CAPACITY - - It can hold (24L capacity) double-layer storage with multiple compartments in each layer, which is convenient for things like water bottles, books, documents, wallets, pens, cell phones, tablets, mobile power, 15.6-inch laptops, etc. to meet the needs of daily work and study and travel.