The mouse is so great that I have installed on my laptop and I transferred my M510 mouse M560 on my lap with this new keyboard (the unifying thank you). The logic being that I use my laptop more than my tour I n''utilise than for storage and video conversion. Indeed this mouse is very plump falls perfectly in the palm of the hand, and also very Cossard, I was able to program the pressure on the roulette double-click (not on the M560).