Instruction: Answer the given question by extracting information from the supporting document.

Input:
Question: Does this work in Rome, Venice and Munich?  Do I need an additional converter/adapter?
Document: I took this with me on my trip to Ireland and the UK and it worked great. Just plugged it into an adapter (NOT converter) and had no problems charging all my stuff every night. I will say all my chargers were ones that worked on both voltages. If you have stuff that does not work on both voltages you may need a converter instead of adapter.
Conveniently sized, four outlet power strip. Works on both 110 and 240 volt systems. Remember, this is not a voltage converter, but simply a passive device. You must purchase an additional adaptor to convert from the 3-prong grounded plug to the two-prong European receptacles. I purchased the VCT Electronics VP11B Grounded Europe Adapter - USA To Europe Heavy Duty for this purpose.
I am currently backpacking Europe for about 3 1/2 months. I'm a month and a half in and I've used this almost every night. I can tell you that it well work with the different voltages in the European Union and the UK, but it is not a converter! All the electronics I have work with European voltages so I didn't need one. It is very compact. I love this little thing.
I got this power strip for a trip we planned to Europe. It came in so handy - especially since a couple of our adapter/converters didn't work! We were able to plug this strip into the one working converter and have 4 outlets to charge camera batteries, iPad, iPod, and phones. I have since used it on other local trips around the U.S. and it has been invaluable in hotel rooms and even at my parents' house where finding extra outlets can be a challenge.
Well made, compact, lightweight. Goes on every trip for work or play.Note: It will NOT convert 110 V to 220 V or vice versa - you need to make sure your gadgets work with 220 V before you use this without a converter.
I initially bought this to use in Europe so I could get away with only purchasing 1 adapter. I did not need a converter since all my devices could take 110-240, so for very little cost, laptops, iDevices, etc were all easily charged.Since then, I've found this power strip so useful and compact that I don't travel without it.
Excellent! It's light weight, and doesn't take up a lot of space. Slipped easily into my carry-on luggage, as advertised. Was great for traveling in Europe as well. I was worried that I would need a converter when using this product, but worked well in conjunction with the adapter that I bought, also from Amazon (VCT VP 11B - Grounded Europe Adapter - USA to Europe Heavy Duty Adaptor Plug German Schuko).
I love this little power strip! It's accompanied me on trips to Central America, Peru, Patagonia and Turkey and has worked everywhere. When the outlets are non US standard I only need one adapter and no converter to get power to up to four devices at once, usually a cell phone, two camera battery chargers and my laptop. The short cord wraps around the power strips and plugs into one of the outlets for compact storage. You can't go wrong with this one.
I learned the hard way that you need to get one power strip for all your devices instead of moving hotel furniture trying to find all the outlets. I have a job that requires me to travel several times a year. All the portable gear comes with me: laptop, work phone, personal phone, work iPad. I use one adapter (when needed) for the wall outlet, and plug in all four devices normally into this little Monster. It's just the right size, not bulky, not too small.
This power strip doesn't have any electronics in it (surge protectors etc) so it is just wires and metal that doesn't care about the hertz rating or voltage: what does care about the hertz and voltages is the stuff you plug in. Make sure your equipment will operate on 240v/50hz or you will also need a converter.Bottom line is this worked great for us in Italy, with an adapter, to plug into a single 3-prong Italy wall outlet and charge four of our electronic items simultaneously.
Answer: It's just a standard "American", three prong, grounded plug with four standard grounded outlets.  It is not a European voltage converter.  You would need a seperate converter.