Will this work when traveling outside the US? is it 110-220?

I was curious as to whether this works with the LG VX11000 enV Touch, the adapter is fairly new, but I have two devices that use it. I have two other devices that are included in your list, and I was hoping that if I buy one of these, would I be able to buy extra usb to adapter connections and adapters? I did build my own 4 way USB splitter (using an old USB 1.1 hub I wasn't using) that performs the same function as the AC adapter to USB, and just need extra adapters