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• Six programmable buttons give users more versatility for personalized mouse functions
• Pointer speed buttons now located on the side allow convenient adjustment without ever changing your grip on the mouse - up to 4 speeds
• Design is more comfortable & carefully sculpted for uncompromised comfort
• Larger flange for your pinky to rest and relax on while mousing
• Updated internal software technology comes standard in new version
• Evoluent Mouse 4 is made from 30% recycled plastic
• Illuminated features turn off to indicate when the mouse is in sleep mode
• Gaming grade infrared sensor tracks more accurately on more surfaces than a laser sensor
• Variable resolution, from 800-2600 dpi, can be changed easily by moving a switch located on the side of the mouse (offers 2600, 1800, 1300 dpi - most mice are 800 dpi or less)
• Optical scroll with detents (clicks)
• Small lip on lower edge keeps your little finger off the mousing surface
• Programmable buttons allow for different functions in different programs
• Completely new electrical design and new internal mechanical design for improved fit and feel, as well as improved reliability
• 6.6ft long cord with USB connector
• Dimensions:
• Standard mouse: 3 1/2" W x 4 3/8" D x 3 1/4"  
• Small Mouse: 3 3/8" W x 4 1/8" D x 3" H
• 2 year manufacturer warranty

Specifications:

PC Compatibility

• Includes driver for Windows XP Pro, XP Home and Vista 32 for programming all six buttons
• Does not require driver- the Vertical Mouse 4 still has basic functionality without it
• Uses USB port only- not compatible with PS2

Mac Compatibility

• Allows for two buttons (left and right click) and a scroll wheel in OS-X 10.4.5 or newer without a Shareware driver available on Evoluent web site
• Requires USB port

Linux Compatibility

• Incorporates all six buttons in XFree 4.0.1 or higher and Knoppix Linux 3.9 or higher without a driver: left click (top), right click (middle), middle click (bottom), middle click (wheel) and right click (thumb)
• Requires USB port

Unix Compatibility

• Not compatible with Unix

The Evoluent Vertical Mouse offers a unique, patented shape that supports your hand in a relaxed handshake position and eliminates forearm twisting that most mice cause. You will quickly become accustomed to the improved comfort; the grip is the same as an ordinary mouse, just turned sideways. The unique, patented shape that supports your hand in a relaxed handshake position and eliminates forearm twisting that most mice cause. You will quickly become accustomed to the improved comfort; the grip is the same as an ordinary mouse, just turned sideways. Available in right and left handed models in wired and wireless and now available in Small.