I ordered it on December 14th and I received in my mailbox on December 26, it requires two small-size batteries (AAA), the USB key is located under the cover of the mouse, once connected to usb port, the mouse can be used immediately without driver installation for mac. Moreover, it works on almost all surfaces, I have not yet found a surface on which it did not work ... For my part I use it on the chair! In terms of quality, I have made fell over a meter ... Instead of breaking into a thousand pieces like an Apple mouse, it is just slightly dislocated and cache and batteries jumped, but after all she was delivered as new, in fact it is this story that convinced me to leave a positive comment! Enjoy!
