yeah thats like what the customizable dpi does. DPI =dots per inch. Typical optical mice (the ones with the annoying red light) have like 800 dpi, but this laser mouse goes up to around 3000. And its on the spot customization (press buttons to customize it on the mouse), so you dont have to go into the options. It could be useful for like when your sniping, you wanna adjust the senitivity on the spot, and then when you switch out of the scope you wanna put it back. Its pretty cool