First, it should be noted that I've been looking forward in advance huge to the great designed mouse. When I had, however, they receive today, I was more than disappointed: I have a Mac Mini Late 2014 and the Mouse was, though clearly identified as "Mac" stated compatible, not be able to connect to my Mac (OS X 10:10 .2). Even the included Bluetooth dongle I have - although completely unnecessary in a Mac - in my despair plugged into a USB 3.0 slots, whereupon not only the mouse, but also my Apple wireless keyboard had a strike. The processing has disappointed me: Aluminium was only to be found beneath the mouse, the rest was plastic. Worst of all, I found the battery cover: A cheap Plastikverschraubung that, I thought, was difficult to sit up again. CONCLUSION: If a Mac Mini Late 2014 has: Stay away! At all other PCs I can not say anything. I have, moreover, a Mad Catz CTLR who also works with Bluetooth and also does not connect with my Mac mini, while all other Bluetooth devices (Apple Keyboard, Apple Magic Mouse, Philipps Soundbar) had been working great. The mouse goes Morgenpost turning to Amazon back!