The Panasonic SolarSmart Portable Solar Power Charger is perfect for charging all of your smart devices and audio/video players. It uses Panasonic"s efficient HIT solar panel technology and the industry leading eneloop rechargeable batteries to provide your devices with much needed power. Simply plug your device"s USB charger cable into the USB port on the charger, and you"ll be ready to go. Plus, the charger also features LED lights, including an emergency flashing light, low light setting, and high light setting. And when you need power but the sun isn"t shining, simply plug the charger into a USB port on your computer or via a wall charger to charge it up.