When I first handled the mouse I was delighted with the texture and the way it fit my hand. Also, when I first plugged it in, it started working immediatly. However, although I left it plugged in for 4+ hours, it no longer worked and had the symptoms of dead batteries. Also, unlike advertised, the mouse would not work when plugged into the USB.BTW- the owner's manual posted on the Targus web site is different from the one that comes with it. The one that comes with it says to charge for 4 hours, while the one on-line says 8.Tech support next to useless. Kept telling me that I should take it back to the store, while I kept telling him that the store (CompUSA) was going out of business and I could not take it back.Currently waiting for feedback from Targus to see what I can do with this piece of junk.