First step, unpacking, a real safe! Beautiful and strong sealed container. We put the supplied battery into the beast and hassle to close the battery compartment. A brief manual, a nice cover and second step: Download the beast management software. Connecting the miracle and named above, it works perfectly. With the software, you can easily configure the mouse as desired and assign the required functions to the most convenient buttons. A quick start, easy management, ergonomic buttons, and an adjustment to the palm of the hand very useful when you have a little long hands. From a reasonable weight anyway, the laser system is quite accurate and does not answer even on smooth surfaces. I said that I tested this mouse in a domestic setting and not in a hardcore gamer framework. Tested on Windows 7 PC and Mac Book Pro with the same results. Small worries though, bluetooth mode, the Mac has never found, but I'm can not be good at it. See with other testers! I remain satisfied with this mouse and waiting to see a use battery consumption and the strength of the whole.