As the commander I thought it was going to be the kind of promising product that sells dreams ... on receiving two days later, I was pleasantly surprised. The packaging is packaging a real, not made by chinatown, a colorful manual and multi-lingual. The mouse in it even allows evil things: touch scrolling, physics-click (semi touch) and use one or two batteries according to the desired lightness. The batteries are LR06 AA (normal what) and it has provided with, Duracell ... In short, provided it does not fall from office, it breaks in my bag.