Griffin PowerBlock Single Universal Charger for MP3 Players and USB Devices - Black

Use one less power outlet with this handy solution from Griffin, which allows you to charge MP3 players or other USB devices at the same time. Charges Sansa, Creative, Zune, Samsung, iPod, iPhone and most other MP3 players and devices that charge via USB. For MP3 players and other devices that get their power through USB, just plug in your device's USB cable, and charge from almost any 100V - 240V AC outlet. Each charging port on the PowerBlock Dual has a standard USB output of 5V at a rate of 500mA. It'll charge your devices just as quickly whether one or two are plugged in.

The unit has an LED that glows green when it's getting power, so you know it's ready to charge. When not in use, the PowerBlock's non-polarized blades fold flat for storage or transport.