Summary: A big disappointment. I went for the Microsoft brand to be safe but have a very poor wireless mouse. No matter how I try to set it up it does not track smoothly. Went and bought a new mouse mat to give it every chance but I have now given up and switched to another mouse which is fine and working as you would expect.
Summary: The battery dies far too frequently on this unit. So much so that I am going to go and buy anew mouse today, one that is rechargeable. My Logitech mouse, also battery powered lasts for ever, and is in constant use. This one, on my laptop dies at least once per month. Very frustrating.