Features: -The solar backpack with built in 3500Mah battery charges devices such as mobile phones, iPads, digital cameras, smartwatches, power banks, etc. via a built-in USB port -You will no longer be afraid of running out of battery when you go out and you can charge your device at any time -High efficiency solar conversion and stable voltage panels, without worrying about damaging the phone -Sturdy and practical: the breathable elastic sponge shoulder strap and back provide extra back support and feel more comfortable -It is made from a water resistant material and comes with a rain cover -Simply wipe off the water stains when it rains and there is no trace left -The built-in solar panel makes it an ideal companion for anyone who likes to be independent and keep their devices charged -Stylish and practical: the fashionable backpack offers well-structured storage space for all your belongings. -Laptop compartment and iPad compartment inside the backpack (Can store charger, mouse, pen, glasses, headphones, clothes, camera, etc.) What's in the box 1 x Solar Powered Battery Back Pack With Built-In 3500Mah Battery