This is to replace the first one I got and I loved it so much I got another when, after a year of hard use, it started doing a double click when it was pushed once. I don't care because it was a great "normal" mouse with all of the bells and whistles while not trying to be something different. UPDATE: I loved this mouse BUT: I ordered my first one in August of '16. It started to do double clicks, deleting thing I didn't want deleted. I ordered another one September of '17. Now it's February of '18 and my second one is doing the same thing. New batteries don't help. I ordered a different brand this time.