If you are looking for the highest quality portable solar power bank, the QuadraPro delivers. Built with a 4-panel system you can create the power you need from the sun quickly. Hang in the direct sunlight with built-in magnets, great for attaching to your car, or use loops and carabiners to hang from a backpack while on your hike. Charge all your USB devices quickly with the large battery capacity and never be without power.