text: what is the difference between a laser mouse and an optical mouse?   "the difference between a regular optical mouse and a laser mouse is the light used to track movement. a regular optical mouse uses an led light in the optical engine, while a laser mouse uses a laser to track movement. the more dots per inch (dpi) a mouse can track, the more sensitive and accurate it is. a typical optical mouse tracks between 400dpi and 800dpi, while laser mice track more than 2,000dpi. "