The 2.4G wired vertical ergonomic optical mouse is designed to reduce forearm twisting and the resulting repetitive stress and pain. The vertical ""handshake"" position encourages a neutral wrist and arm alignment for greater comfort and better health. No finger contortions are needed to operate the easy-to-reach buttons. The thumb rest has been reshaped to provide even more comfort over earlier versions, and the addition of two navigational thumb buttons allow for smoother, faster web browsing.

Windows 8 / 7 / Vista / XP / 2000

Linux

Mac OS X(The two thumb buttons are not recognized on the Mac OS X.)

1 x wired vertical mouse

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Due to the innovative design of this ergonomic mouse, you may initially find it difficult to use. Please continue use over several days to grow accustomed to and enjoy the full comfort of the design.

• Hidden nano receiver occupies minimum space; Added next / previous buttons provide convenience when webpage browsing; the best choice for internet surfers, gamers and people who work at length at the computer.
• Scientific ergonomic design encourages healthy neutral "handshake" wrist and arm positions for smoother movement and less overall strain.
• 800 / 1200 / 1600DPI resolution optical tracking technology provides more sensitivity than standard optical mice for smooth and precise tracking on a wide range of surfaces.
• All buttons are easily operable without contorting your fingers. The button force is light for easy clicking, but still firm enough to avoid accidental actuation.
• Special Setting Switch Button of the mouse let you take command with maximum efficiency.