Microsoft’s Wireless Mobile Mouse 4000 isn’t the latest mouse on the block, but it is a rather useful mouse and now it’s back with the Wireless Mobile Mouse 4000 Special Edition. It’s offered in a pink color scheme where 10 percent of the selling price will be donated to the Susan G. Komen for the Cure. The mouse will be going on sale come September 16th, which is in time for Breast Cancer Awareness Month in October.