About a DPI button below the scroll wheel allows the sensitivity of the mouse during use at will to adapt. For a three levels are available. Are located on the left side and two thumb buttons, the default used in the browser to change the last at-navigated pages (in the course of back and forth). Definitely a nice addition and very practical.
As optical mouse they can not be used on all surfaces. This is usually not a problem.
The mouse is powered by two AAA batteries that can be insert at the bottom of the mouse in a tray. A very simple and open solution that I very much welcome. For a device that is not with me in daily use that is simply more comfortable than it would be for example, a built-in, non-replaceable battery.
Conclusion: The mouse can be used very easily. Especially for the way this mouse is very suitable for laptops and a good addition. For the price of the equivalent value is really good. I would recommend this mouse.