Sizes: Extra Small, Small, Medium, and Large.
Dimensions and Weight:
- Extra Small: Width = 3.75 inches. Depth = 5.125 inches. Weight = 2.75 ounces.
- Small: Width = 4.5 inches. Depth = 5.875 inches. Weight = 4.2 ounces.
- Medium: Width = 4.875 inches. Depth = 6.625 inches. Weight = 7.0 ounces.
- Large: Width = 5.375 inches. Depth = 7.25 inches. Weight = 8.8 ounces.
Buttons: Extra Small, Small, and Medium have two buttons (left click and right click), and the Large has three buttons (left click, right click, and middle click).
Optical resolution: 1500 DPI
Compatibility: PC, Mac, and XUnix.
Warranty: Three year warranty.