Womens smart tech backpack: The USB laptop backpack with an external USB charging port & set-in charging cable to connect your electronic device, it offers a convenient way to charge your phone while travel. (power bank NOT included). It has a detachable keychain that can hang your key, preventing it from sliding and lost, finding your keys easily. The Detachable Cute Pouch is a removable case that can be used to keep items like lip balm, change, ear buds, keys, and many other small accessories. The durable metal buckle allows you to easily move it from a laptop book bag.