Logitech G7 cordless 2000dpi Laser Mouse
 

The G7 design is very similar to that of the MX518, but oddly enough some
features have been removed. But let’s start at the beginning - the new
laser sensor. The G7 has a 2000dpi sensor, that’s 400dpi more than the
MX518. However, it’s not practical to use this kind of resolution for
Windows work, as the mouse goes all over the place.

http://www.trustedreviews.com/article.aspx?art=1930

the first wireless mouse for gamers ? :huh: