This is the 2nd mouse I have had to send back due to a malfunction with the left clicking button. I am sick and tired of spending my own money to send back their shit products. I am also sending back my 'harmoniq pro' headset which turned out to be a piece of shit too, nothing but static when I speak into the line. VERY FRUSTRATED RIGHT NOW. How hard is it to make sure your damn product works before you fuckin sell it? Pathetic.