OMG! What happens when you are traveling and your iGadget runs out of juice? With the musicPower Encore Portable USB Power Supply, you can charge up to two USB devices simultaneously as well as its own batteries. You simply plug it into any wall outlet with its input of 100-240VAC, 50/60 Hz, .3A maximum. At a size of 4 x 1.8 x 1.2-inches, the Encore features a green/yellow/red battery level indicator and carries a price of $19.99.