Summary: Same experience like another user, it quit working once I replaced the batteries for the first time. It was not that cheap either. GEARHEAD will be banned for ever out of my shopping brand. Very disappointed.
Summary: Plug it in, it works. Being 2.4 GHz, it has great, very long range. Mouse shuts off automatically after a time of non use to save the battery. Any button press wakes it up. The circle (labelled DPI)at the back is another button that wakes it up too. Love the NANO receiver because it's small enough to leave plugged into a laptop without worrying it'll get snagged on something. The receiver can be stored within the slot in the battery compartment when required.
Summary: Pros: Easy to set up, just plug and play. Comfortable to hold for a nano mouse (even for big hands). Ribbed rubber grips on sides. Wheel is quiet and smooth while scrolling. Small dongle barely noticeable on side of laptop. Cons: No on off switch. Short life. UPDATE: After one month of light use, the mouse began acting erratically, the scroll wheel stopped responding and I found the batteries inside had corroded (don't know if it was due to Duracell batteries or mouse...
Summary: I bought one of these mice less than 6 months ago. It worked as good as one of the more expensive brands until it was time to replace the batteries. Once the batteries were replaced, it quit working. I tried everything, even reinstalling the old batteries. I checked in the device manager, and the dongle was recognized but it wasn't reading the mouse. And Gear Head Technical......what a joke!!!!!! Spend a little more and get a logitech or microsoft mouse.
Summary: wow wish i would have had this mouse when i got my new pc last year. this has a battery saving feature,that shuts the mouse down after non use. i been fighting this other wireless one for way to long, buy this product!