The high capacity battery can be charged via a USB port or by exposing the solar cell to light and will hold its charge for over a month! Charge your electronocs on the go! Beautifully designed with stainless steel and built for today's power-hog devices Juicebar can hold a full charge for over a month so you can Juice Up whenever you need it! Juicebar's built-in USB port allows the use of your device's own cable and cutting edge engineering supports Apple products and popular phones as well as handheld games such as Nintendo 3DS and Sony PSP Tom Toms MP3 players and much more. The JuiceBar Pocket Charger has a built-in LED flashlight and is incredibly small and lightweight measuring just .5" X 4" X 2.5" and weighing only 4 oz. KEY FEATURES - Powerful 2000 mAh Battery includes 4 connectors and built-in USB port for most popular mobile phones and electronic devices and a free accessory bag. FULL SPECIFICATIONS - Built in rechargeable battery: 3.7volt-2000mAh - Multi crystalline solar panel: 5.5 volt-100mAh. Charge devices using either the built in battery or solar panel. Rechargeable using any USB connection or the built in solar panel. CONTENTS - Charger 4 connectors FREE accessory bag USB cable DC cable instructions.