<b>Products in the bundles</b> <br><br> <b>-Matein Black Laptop Backpack*1</b> With built in USB charger outside and built in charging cable inside,this usb backpack offers you a more convenient way to charge your phone while walking. <br><br> <b>-Matein Black School Backpack*1</b> The expandable school backpack comes with closure zipper openable on main compartment and can be expanded capacity to 36.8L from 29.5L. <br>There is a hole through the laptop compartment and main compartment, which allow the usb charging cable connect to the laptop from the main compartment, so that you can charge your phone through laptop in the absence of other way.