Universal US Travel AC Power Adapter Plugs (2-Pack/125~250V)

Pros: Simple, cheap, good quality. Also two pieces, so you can use more devices at once. Ideal for chargers, notebook power sources etc.

Cons: None.

Other: If you are from Europe and travel to USA, this is a must. You just put this on a plug and it works. Just make sure your electronic device / power source can handle 110V/60Hz. Otherwise you are screwed and this will not help you.

Pros: It works, that's the only thing I can say. I wish I could say more but only good thing about it... is that it works.

Cons: It's very, very weak. Sometimes it won't even work. That's how cheap and weak the material is. I will need to hit or slap the item a couple of times before the electricity comes through. Yes... that's very, very horrible.

Other: Buy it if you're desperate for it, because you can find a cheaper one and a better one. This is very weak, and sometimes won't even power your item. I should have brought another one for cheaper.

Pros: 2 devices delivered for quite a cheap price. Did the job for me when traveling in the us, I was able to charge my mobile and tablet with no issues. They take very little space in my backpack.

Cons: I was not feeling comfortable on leaving any electric device connected 24/7, there is a cheap feeling and in my cases the connection between the chargers and this adapters were not 100% stable (I little movement and the charger would 'disconnect').

Other: Practical but I will use a more expensive adapter for long term connections.

Pros: The most important 'pro' is that they work as they should. Also the fact that you get two is a big plus. If you travel to the US, you have multiple devices you'll want to charge, so having more than one plug is very handy.

Cons: The build quality doesn't seem to be that good. It held, however, the time I needed them, so unless you're very brute with it, they'll last.

Other: If you need these, just buy them. If one breaks, you're still better off than buying those way overpriced travel plugs in the airport.

Pros: Its best feature is that it works as it has to. The fact that comes in a two pack is a plus, and if you travel with several items that need charging, this is surely helpful.

Cons: Sometimes, it gets loose and if you use it for charging at night, you will find sometimes that you will get up with not charging at all due to it has moved and there is no contact between plug and socket. You will have to be careful with this. Maybe this problem depends on the one you get.

Other: I would buy one more sturdy if cost a dollar more