The Logitech TrackMan Marble gives you superior fort - for either hand. Ambidextrous design provides long-lasting fort for right- and left-handed people. Convenient button controls let you easily move forward and backward when you're surfing the Web. Click the large buttons

The Logitech TrackMan Marble gives you superior fort - for either hand. Ambidextrous design provides long-lasting fort for right- and left-handed people. Convenient button controls let you easily move forward and backward when you're surfing the Web. Click the large buttons together and use the ball for auto-scrolling. Fingertip-based control enables fast accurate cursor movements. Patented Marble optical technology ensures smooth tracking. Left handed? Right handed? When you're working on your puter day and night and you want more flexibility the Logitech Trackman Marble will help increase your fort level.Primary InformationInput Device Type :  Trackball Device Form Factor :  External Connectivity Technology :  Cable Buttons Qty :  2 Interfaces :  USB System InformationFeatures :  Logitech Marble optical technology System RequirementsSystem Requirements / OS Required :  Apple MacOS X 10.3.9 or later Microsoft Windows Vista / XP Service&SupportService & Support Type