I have been using this wireless mouse for over 4 years and this is by far the best mouse I have owned. The battery life is fantastic being that I use this mouse everyday and I change the batteries maybe once a year. The USB receiver is incredibly small and takes up almost no space. I have dropped this mouse, accidently, many times from heights that I were certain would leave the mouse out of commission yet it has never failed me. This mouse this quite handy and I definitely recommend.