The off-road is the perfect companion for your outdoor adventures. Its solar panel allows you to re-charge using direct sunlight and the ip65 certification makes it dust-proof and water-resistant. Its rubberized finish, metal carabiner and built-in flashlight also make it an ideal accessory for hiking and camping. Let the power bank soak up the sun outdoors to optimize solar recharge. To recharge the off-road a little quicker, use the micro-usb/usb cable and plug into a power source. Spectech-power products have a one year warranty on electronic parts from date of purchase.