Comfortable portable solar charging battery. Thanks to the flat and slim design, it's not only convenient for carrying your clothes or luggage, but it's also great for your ad with a flat surface on the back of the brand-friendly product. The capacity of the portable battery is 4000 mAh, with outlets with 2 USB ports, 1 micro USB port and Led flashlight. The more interesting thing about this product is that it is more geared towards people who love traveling in nature or working in places where there is no access to electricity and can take advantage of the solar panel on the battery itself, it not only charges your device, but also recharges the battery itself to re-read it, the device also has a battery charge indicator. Another interesting detail for this battery is the shock-proof and dropped hull, with its top and bottom, as well as the rubber side of the battery, the battery features a small carabiner that can be easily attached to your backpack or jacket to collect more easily sun rays. A charging cable is included. The product arrives in a box.