People who like the clicking sound as I his computer mouse is totally annoyed, which should necessarily rely on this product! I am super happy! One hears wiklich no click noise when you operate the buttons, but still has a haptic feedback. The mouse works wirelessly and is ready for use (under Windows 7 without additional drivers). For the operation of a battery of the type AA is required, which one gets along really incredibly long. The mouse is also comfortable to hold. Enziges drawback: The area where the thumb rests, looks a little worn out after a while ...