DPI stands for “dots per inch”. In regards to mouse DPI, this means how many pixels your cursor will move for every inch you move your mouse.

For example, the Plastmax AI speech mouse advertises a default DPI setting of 1600dpi, meaning that if you were to move the AI mouse an inch on your mousepad, the cursor on your screen would move 1600 pixels.

To be clear, DPI is a measurement of that physical relationship only, and is not representative of the mouse’s precision, or the accuracy of the sensor.

The higher the DPI, the faster the cursor moves and the more sensitive it feels. Pretty simple right?