Ready for an exciting mouse? This fun mouse is transparent so you can see the inner workings of the mouse. With cool alien lights flashing, it's sure to make computing more fun. This great mouse is USB and PS/2 compatible, works with either Windows or Mac, and has high resolution 800dpi optical technology. With its ergonomic design and 3D scroll wheel, it's a no-hassle, easy to use mouse without the ball, so cleaning is not required. Click on Overstock.com for the hottest deals on high performance computer accessories. Features include: 800 dpi optical technology USB, PS/2 interface Flashing alien lights Ergonomic design 3D scroll wheel Works with Windows 95/98/2000/Me/XP, Mac Plug and Play