The uniquely patented contoured upright design transforms the traditional palm down mousing position to a vertical 'handshake' position which offers increased comfort for many users. Wired. Features an instantly accessible pointer speed control button on the side of the mouse allowing the user to select between Extra Low, Low, Medium and High, giving users the ability to select the degree of precision they require for each task. USB 2.0 Connectivity. Medium. 2-year warranty.