The KMO-120BK USB optical mouse has an advanced sensor that provides excellent motion control and 1000 dpi for maximum cursor precision. The lighted scroll wheel makes it possible to scroll up and down with pinpoint accuracy. Its ambidextrous design with textured grip sides accommodates both right and left hand users, to get more done, more comfortably. The KMO-120BK also comes ready to Plug and Play through its USB connection.