• The Zero Tension Mouse allows all of the muscles of the hand, arm and shoulder/neck to relax so that pain and strain is greatly reduced.
• Available for right hand in two sizes, Small & Large
• Includes right and left mouse buttons.
• Compatible with all USB enabled computers; available in Universal Serial Bus (USB) port
• Digital optical tracking
• Dimensions for Small Height: 3.5" Tall x 2.75" W x 4.75" D
• Color: Black

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• System Requirements:
• Apple® PowerPC and Intel computers on the following operating systems: Mac OS 8.6 to 9.2.2; · Mac OS X - 10.0 to 10.1.3; Mac OSX - 10.2 to 10.4.x
  This mouse does not work with a PS2/USB connector!
• Microsoft® Windows®-based computer with the following: Windows 98 or Windows Millennium Edition with a Pentium 133 MHz or higher processor and 32 MB of RAM; Windows 2000 Professional or Server with a Pentium 133 MHz or higher processor and 128 MB of RAM Windows XP Home Edition or Professional with a Pentium 233 MHz or higher processor and 128MB of RAM
  This mouse does not work with a PS2/USB connector!
  (USB requires Windows 98, Windows Millennium Edition, Windows 2000, or Windows XP)

                    NOTE: This mouse will not work with Windows 95 or Windows NT