Introducing the new Microsoft Classic Intellimouse Inspired by the Microsoft Intellimouse 3.0, the new Microsoft Classic Intellimouse has made modern improvements to a fan favorite. The features that fans loved about the original are still here — customizable* buttons, the classic ergonomic look and feel, and the wired USB connection. Upgrades made possible by today’s technology can help you find your breakthrough: tracking is more precise, buttons feel more reliable, and the tail light is a distinctive, modern white.