Logitech MX 1000 Laser Cordless Mouse Powerful scrolling system - Wheel tilts for side-to-side scrolling, Cruise Control New thumb-button controls - Universal page forward and back, plus an application switch that quickly moves between open windows Superior grasp - Deep-sculpted thumb support for incredible comfort Rechargeable - Rapid-charging base station makes sure the mouse is always ready Fast RF cordless - Cordless performance that equals USB corded connection