Feature: 

Modify the pattern at will, let the laptop backpack as you wish. It has a sleek and cool design that’s easy to spot in a crowd. The Crelander LED cool knight smart backpack is suitable for a variety of scenes,like traveling,hiking,riding,go to school….

LED backpack size is about 15 * 7 * 18in which have enough storage. Large zipper pocket as a laptop bag, put a tablet computer;the interior has a number of independent small compartments, can effectively store cosmetics, tissues, keys, textbooks, mini ipad, cell phones, umbrellas, some sports equipment, etc….

LED smart knight backpack appearance purchase 3D hardcore waterproof material;the back width using 1680pvc ,48*48 full-color dot matrix screen , support text , pictures , GIF , and other formats ;adjustable shoulder strap size; breathable material for the back

The LED Knight Backpack with DIY screen is also the best gift for yourself or others on the Christmas, Birthday, Valentine’s Day….

Search on your mobile phone or directly scan the code to download the APP, plug in the mobile power supply through the built-in USB data port on the back, turn on the Bluetooth and scan the QR code to bind the backpack. You can connect the device and use it.