Sega dreamcast mouse is unmatched in speed and precicion for gameplay. Built to last : The mouse is made for intense gameplay. Or fast web surfing. Variable speeds provide for greater precision. Acceleration lets you move further with less movement. Installs directly into your Dreamcast control port. Use the mouse wheel to surf the Internet, change weapons in Quake II Arena, scroll without scrollbars, and more! Works comfortably for left or right hands.