Mice and Pointing Devices – Mouse - 5 Total Buttons - USB 1.1 - USB Type A - Scroll Wheel - Black - 1000 Movement Resolution (dpi) - China - Cable - Desktop PC - Notebook - Optical - Windows - 1.7" Height - 4.5" Width - 2.7" ...
Mice and Pointing Devices – Mouse - 3 Total Buttons - USB 1.1 - USB Type A - Scroll Wheel - Symmetrical - Black - 1200 Movement Resolution (dpi) - China - Cable - Desktop PC - Notebook - Optical - Windows - Mac OS X - 1.9" Height