Does this product accept 220v - 240v power when in Spain?

We have two U.S. iPhones 5's and an iPad Mini that we are taking to Spain on vacation. We have converter plugs, but Spain typically has 220v power rather than 110v like the U.S. Does this device step down the voltage, or accept 220v power to run the USB ports?

Kensington International Travel Adaptor

Kensington International Travel Adaptor

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