| ， Os compatibility: Windows95, Windows98, Windows Me, Windows2000, Windows NT, Windows XP
， High Precision optical Mouse
， Plug and Play, no-driver required
， Scroll without needing scrollbars: Roll the wheel for the easiest scrolling in application, without clicking in scrollbars. Press the wheel for the extra mouse button.
， Optical Tracking Engine: The Optical sensor accurately scans the surface of your desktop many times every second for smooth and fast cursor tracking on your computer screen.
， Comfortable shape: The comfortable shape provides easy control whether you hold it with your right or left hand.
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