On receiving my package, I thought I would have to install full programs, software or other. But no, nothing like that. We just clipped the small USB key, pressing the "ON" button on the keyboard and the mouse and five seconds the computer recognizes both devices and is operational (I'm on XP). The batteries are already included not need to buy right away and see the product description, I should change within 1 year of the mice and in 3 years that the keyboard. We'll see!
The keyboard is perfect. The keys sink perfectly, nothing hangs, it slips on hand. The many shortcuts are helpful and there is a drawing or writing to indicate their use. Ideal for those who will never remember what are the keys F1, F2 etc.
The striking recognition is direct. No waiting time or another.
The keyboard can be placed on the knees to be relaxes, or it can be raised by two small levers.
The mouse has some kinks in against, but which you get used to over time. Indeed it is a bit heavy, this being due to the battery. It is a change, but the days pass and we forget the weight of the former.
Finally at the beginning there were a few bugs, it clicked wrong, indeed there was a delay between the click and the action on the screen. To remedy the problem, I close the small key and plugged into a USB port on the front of the tower. After this change, the bugs are gone and everything works perfectly.
Overall this set of keyboard + mouse is a very good product. It is very functional, allows great freedom, and is fully consistent with a black computer together.
This is a computer tool that I recommend quality!
Edit of 3 March 2014: It's been over 3 years since I use this set of keyboard + mouse and I am still very satisfied. Used daily, nothing is damaged or worn. In addition it appears that the two elements are little battery consumers.
