The Sandberg Outdoor Solar Powerbank 10000 is a compact and lightweight charging solution, capable of charging your smartphone up to 4 times. It features a built-in solar panel for on-the-go charging on sunny days. The power bank is encased in a durable IP66 shell, making it resistant to all weather conditions and suitable for rugged outdoor use. It can withstand various environmental challenges, including snow, submersion in water, and desert sand.