Experience the superior precision & performance of laser tracking technology. Delivering extraordinary control on virtually any surface, the Think Pad Laser Mouse offers enhanced tracking accuracy & smoother navigation over traditional optical mice. Scroll through documents, spreadsheets, & more with increased accuracy & precise control with this exclusively contoured & customizable three-button Laser Mouse. Features & Benefits: 1600 dpi resolution (user selectable to 1600, 1200 (default), 800, or 400 dpi Tilt wheel for four-way scrolling Exclusively contoured for both right & left-handed usage Fully programmable tilt-wheel & buttons to adapt to the way you work Exclusive soft-to-the-touch metallic black finish offers the ultimate in all-day comfort