Can I use this curling iron in Germany?

I'm going to Germany in 2 weeks and I'm a little confused about the voltage conversion stuff. I have this curling iron: http://www.drugstore.com/products/prod.asp?pid=346672&catid=183380&aid=338666&aparam=goobase_filler&device=c&network=g&matchtype=

I understand that I will be able to use my laptop and iphone charger using ONLY an adapter because they are dual voltage. The website above says they curling iron is "Dual Voltage for convenient worldwide use". Also on the back of the curling iron it says 120/240V. This leads me to believe that I can use it in Germany using ONLY an adapter and that I do NOT need a voltage converter. But then I see that on this website above it says: "Please NOTE: This item has been built to US Electronics specifications and may need additional modifications or converters to be used in countries other than the US And Canada" Do they mean that I need a voltage converter? Or are they just talking about an adapter.

Also, if I can use it in Germany without a voltage converter, do I need to do anything other than just plug it in with the adapter?

To be clear, the adapter I'm referring to is just so the plug fits into the socket in Germany, it does not decrease the voltage.

YOU CAN USE IF YOU HAVE THE CORRECT PLUG, German have two round prongs.

NOTE: Most German Hotels will have 110 V current with US plug.

hope this helps.