This little charger has two USB ports 1A (for phones and accessories) and two 2.4A USB ports (for tablets). Small and lightweight, it fits easily into any travel bag, which makes it really essential, especially in stations and airports where you have to fight for a power outlet: with it you can share an outlet with several . About travels: the French decision comes off to reveal a retractable North American outlet is handy. Manufacturing quality, it is far from cheap products (and sometimes dangerous) found cheap on ebay.
A really convenient and well designed product, a must if you frequently go to the USA or Canada.
[Sample provided in exchange for an honest and objective comment]