This new model, however, does now been comparatively quite a long time his service with me without fatigue. The old version also, at the contact surfaces with the hand heavily to change the color, which is not the case here bowed. The mouse fits comfortably in your hand, works on many surfaces even without mouse pad and has no problems with reception. Likewise, progress is too early the tiny USB receiver that hardly protrudes from the USB port. Previously these things were quite large and sometimes therefore disturbing.
I am completely satisfied and am especially also the form factor and the size impressed. It is neither too small, like many other notebook mice still clunky, as I now feel most desktop mice. I would so thoroughly recommend for desktop use.
One last tip: Since the mouse is powered by a AA Mignon battery, I recommend frequent users expressly for a good rechargeable AA battery. Because the promise of 10 months duration should only at very sparse use practice also have their validity. I need to replace every few weeks, or recharge. A battery fuel gauge, there is not the way, you just tell this that the mouse pointer does not move.