Battery life is amazing almost two years with the original ones from the package mouse is the right size responsive accurate simply the best of the best

I recently started having trouble with it the receiver actually because i had the terrible habit of taking the receiver off the computer and putting it back on the mouse everyday when i left the office since i didnt take the mouse with me i was always afraid id lose it lol so what ended up happening is it probably got something loose inside so my computer did not longer recognize it

Long story short if this happens to you all you need to do is buy a new receiver for 5 in amazon and problem solved since the mouse itself works as good as new but id had my eye on the red version for quite some time so i ended up buying a new receiver to take the old mouse home permanently and bought the red version for the office