Five-Button Optical Mouse offers precise movement and clear reception up to 6'. Built-in, Microban antimicrobial protection fights the uncontrolled growth of damaging microbes, such as bacteria, that can cause product deterioration. The continuous cleaning action helps your input devices remain cleaner for the lifetime of the product. Long battery life and superior optical sensor ensure hassle-free cordless mousing. Mouse also includes five programmable buttons, Fellowes EasyPoint Software, USB connectivity and two AA batteries. Optical mouse is compatible with Windows 98SE, 2000, ME, XP and Vista compatible.