Sandberg Solar 4-Panel Powerbank 12000 is a combination of a high-capacity 12000 mAh powerbank and a foldaway solar panel, for fast, efficient recharging in sunlight. Hang it on your rucksack while hiking for example. You can always be sure to have power for your mobile devices, regardless of how far you are from the nearest mains socket. Water- and shockproof materials. Charge your devices using the two USB ports, or via the built-in wireless charger for Qi-compatible smartphones.