great mouse indeed

this is a very fast mouse and since you can adjust the sensitivity on the fly that makes it even sweeter but the one area i am going to complain about is the battery life tho it does come with two so you can keep one charging. It would just really suck to be in the middle of a frag fest and have to swap batteries. The range is very good and the response is a dream and the sleek design and smooth feel to the mouse are great. Logitech did an outstanding job with this one so if your going to do a wireless mouse i suggest using logitech's products.