I change my comment. When I had this mouse, I had given 5 stars because I thought she would do her job. Off when in use, I found that it did not detect my Mac BookPro. On my mother's is worse when I put the USB Nano Receiver, Mac suddenly goes out! Honestly, I am very disappointed with the turn of events. What there is positive is that it works on my mini NetBook Windows. I will keep it almost by obligation because it was not on this device that I intended to use it. She may be a manufacturing defect? I do not know.