PC Treasures Mighty Mini Mouse- Retractable Featuring pinpoint 1200 DPI precision, plug-and-play simplicity Compatible with Windows 8/7/VISTA/XP/2000/98 and Mac OS X. Comes packaged in a blister pack. small-footprint design and a tangle-free retractable USB cord this red Retractable Mini Mouse is the perfect productivity-enhancing, go-everywhere mini-mouse.