Optical Trackball Marble Mouse

Optical Trackball Marble Mouse The sleek shape of this advanced trackball delivers all-day comfort for either hand. Uses optical Marble® technology for smooth and precise tracking. Its large trackball improves control while reducing hand and wrist motion. Offers multiple scrolling options and customizable buttons for personalized navigation. Mouse Technology: Optical; Trackball; Connector/Port: PS/2; USB; Left/Right Hand Use: Left; Right; Buttons: 4; Programmable; Scroll.