After a long, long search for a suitable to my requirements Mouse, I'm now become finally found it. My requirements: I use a Macbook Pro Retina with OSX and Windows 8.1 as a virtual machine. Therefore, it is important to me, first, a Bluetooth mouse without dongle (!) To have, because the Macbook Pro, unfortunately, only 2 USB ports has and I do not have a fully occupied by a dongle. Secondly, the mouse is of course also work with no problems under Windows. What can I say ... after several Logitech products, the Razer Orochi is Apple Magic Mouse and much of 2013, the perfect mouse for me! Only criticism: one has connected the USB cable once it is really very difficult, the cables to move away from the mouse.