Crelander Motorcy Backpack,Knight Backpack with LED Display, 3D Waterproof Hard Shell Laptop Travel Bag DIY Programmable Storage Daypack Helmet Bag for Riding 17inch

DIY Modify the pattern at will, let the Crelander laptop backpack as you wish. It has a sleek and cool design that's easy to spot in a crowd. Cool Gift The LED Knight Backpack with programmable screen is also the best gift for yourself or others on the Christmas, Birthday, Valentine's Day.... Expandable Space With the hidden & expandable space,the motorcycle shoulder bag can be held most helmet size. How to use 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. NOTE 1 As for the transportation safety, we do not provide mobile power bank,backpack only..NOTE 3 Since this is newly produced, some kind of smell is possible.Please donot worry about it,put the opened backpack in a ventilated and dry place for some times,no flavor..NOTE 2 If you found any question and problem after receipt the backpack,please contact us for help firstly.