The Logitech TrackMan Marble Wired Optical Trackball A1164 is a versatile mouse alternative that offers a comfortable and ergonomic design. With a sleek white and red color scheme, this trackball features optical tracking for precise cursor movement and a maximum DPI of 300. It comes equipped with 3 buttons and a scroll wheel, making it easy to navigate and scroll through web pages or documents. Perfect for those looking for a reliable and long-lasting trackball, this Logitech TrackMan Marble boasts a 3-year manufacturer warranty for added peace of mind.