2-in-1 Optical Trackball TK-2500p

The mouse is the second most important way of communicating with a computer. Please be careful to choose the right type of connection when buying a mouse, there are three different types: - USB is the most modern. You can recognize it by the rectangular connector. - PS/2 connectors are round. This type of connection is fairly commonly used in PC's. - Bluetooth is another modern (wireless) connection method.

-4 button optical trackball with integrated numeric keypad and retractable cable;
-Ideal for notebook users: more comfort than a ordinary built in touchpad and easy to use numeric keypad;
-Convenient integrated numeric keypad to take full control of your spreadsheet and database applications, like Excel or Access;
-Ergonomic design foldable stand at the bottom providing best working position;
-3rd ... More>>> and 4th button to easy navigate back and forward in your Internet browser;
-High quality advanced optical sensor providing motion control with high precision; <<<Less