So I bought myself the Logitech Mouse M305 a few days ago for my notebook. It was important to me above all that an annoying cable and no longer on a small receiver plugged into the USB port. And I must say, I'm really super happy! And unlike the Logitech Mouse M205, where the receiver is the size of a memory stick, performs only a tiny nano receiver his work. And is quite unremarkable. The mouse is ready for use in a few seconds immediately after plugging in the nano-receiver. It runs flawlessly on my laptop running Windows 7 64-bit. Would I buy again at any time! Strong buy recommendation!