AC to USB adapter: the USB charging cable for your cellphone or PDA is great - it charges quickly while you are at your computer. But what happens when you are away from your computer? The AC adapter charges your devices with your USB cable no matter where you are. Plug the adapter into any 110 Volt AC outlet and begin charging. In no time, you'll fully charge your cellphone or PDA battery. It auto-adjusts to voltage and frequencies worldwide; plus the LED indicates when properly charging. The adapter's lightweight design makes it easy for travel, and far easier to carry than that heavy "power brick" that came with your device!