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Optical mice track movement with an optical sensor. A red light-emitting diode (LED) illuminates the mouse’s surface, and a sensor detects its movement. Accurate optical mice don’t need mouse pads.
A wireless mouse uses Bluetooth or radio frequency to connect to the computer wirelessly. It reduces desk cord clutter and increases mobility.
Gaming mice have extra buttons, configurable DPI (dots per inch) settings for sensitivity, and ergonomic designs to improve gaming performance. They have little lag and high responsiveness.
A trackball mouse is a stationary mouse with a moving ball on top that controls the cursor. Rolling the ball moves the cursor, not the mouse. Trackball mice are mainly suitable for small spaces or stationary mouse users.