Advanced Optical USB Mouse (Silver) ?
High-definition optical tracking You'll enjoy responsive, smooth cursor control, precise tracking and easy text selection thanks to high-definition optical tracking (1000 dpi Full-size comfort, ambidextrous design Designed to keep either hand happy. So you'll feel comfortable, even after hours of use.
? High Speed Optical Mouse
? Speed Select Button (1000 / 1600 CPI)
? Ergonomic and Comfortable design
? Plug-n-Play USB mouse