Features: Special Creation fashionable and cool design with LED full color screen, diys& easy editing picture & texts via APP. Usage Instructions First:Insert the LED backpack into the mobile power banks and turn on the power, Step two Download the APP on your mobile phone Step 3: Proceed to connection via to easily setup your backpack. This product also comes equipped with instructions Spacious storage Backpack Large storage capacity: easily fit a 15 inch laptop,motorcycle helmets,along with several light clothes, and so on. Multiple independents storage spaces: easy storage of personals belongings cosmetics, wallets, keys, mobile phones, umbrellas, sports equipment, and so on. Gift for all occasions LED Backpack is the best gift for your friend & families for every special occasions such as Christmas, Halloween, birthday, and so on. Reminder please understand that for the convenience of transportation & safety,the LED backpack does not come shipped with a power banks Specifications: Materials:oxford cloth Package Includes: 1Piece LED Backpack note: Please allow 1-2cm errors due to manual measurement. Due to the differences betweeen different monitors,the picture may not reflect the actual colour of the item.