$109.95 USD

The patented shape maintains your hand in an upright neutral position that prevents forearm twisting. Many users, including medical doctors, ergonomists and physical therapists, said the Evoluent VM4RW VerticalMouse provides superior comfort and even relieved their wrist pain.

Evoluent VM4RW VerticalMouse 4 Right Wireless

Approved mouse of University of California at Berkeley

The Evoluent VerticalMouse 2 (an earlier model identical in concept) was evaluated in 2007 by a team at the health services clinic in UC Berkeley, including medical doctors, physical therapists, ergonomists, and administrators. It was found to be comfortable, easily adapted to, and promote a neutral wrist and forearm posture. It was the only vertical type mouse approved for staff use within UC Berkeley and for sale in the campus store at that time.


Images are wired model

  • Comfortable and easy to use - The shape is thoughtfully sculpted for uncompromised comfort and easy-to-reach programmable buttons. No finger contortions are needed to operate the buttons.

Comfortable and easy to use

  • Improved thumb rest - The thumb rest has been reshaped to provide even more comfort over earlier versions.

Improved Thumb rest

  • Now two thumb buttons - A new bottom thumb button provides greatly extended functionality when used with the included driver.

Two Thumb Buttons

  • Extended lip prevents rubbing - An extra wide lip along the bottom edge prevents the last finger from rubbing the desk.

Extended Lip prevents rubbing

  • Adjustable optical sensor - Pointer speed controls on the side allow convenient adjustment without even releasing your grip from the mouse.

Adjustable Laser Sensor

  • Pointer speed indicators - Top mounted LEDs show through the chrome thumb rest to indicate selected pointer speed including extra low (XL), low (LO), MD (medium), to high (HI).

Pointed Speed Indicators

  • Mini Receiver - The tiny 2.4 GHz receiver avoids being knocked off the side of a notebook computer.

Mini Receiver

  • Powerful and intuitive driver - Evoluent Mouse Manager for Windows provides extensive but easy to use functionality for 6 buttons through a simple and intuitive interface.

powerful and intuitive driver



1 AA battery. Good for 3-5 months of average use.

Compatibilty Windows
  • Downloadable driver for Windows XP, Vista and Win 7 in 32/64 bit for programming all 6 buttons. The driver is not required. The VerticalMouse 4 still has basic functionality without it.
  • Freeware driver for other Windows versions
  • USB only; not compatible with PS2 adapters. May be compatible with some USB KVM switches but it is not guaranteed.


  • Downloadable driver for programming 6 buttons. The driver is not required. VerticalMouse 4 still has basic functionality if the driver is not installed.


  • Basic functionality without a driver.


  • Compatibility unknown.

Hand Size for Evoluent VerticalMouse 4

The Evoluent VerticalMouse 4 regular size models (Right Wireless, Right Mac, Right Bluetooth, Right and Left) are for hands at least about 7 inches or 178 mm from the tip of the middle finger to the wrist crease. Hands shorter than 7 inches/178 mm may be more suitable for the VerticalMouse 4 Small. To see which model fits you better, download a full-size pdf of this drawing, print it with scaling set to None and put your hand on it. If your hand is the same size or smaller than the drawing, the Small may fit you better than the regular size models.

Evoluent VM4RW Hand Size

Literature (Please open the following documents for more technical information)

Data Sheet - Evoluent VM4RW VerticalMouse 4 Right Wireless Mouse - pdf
  • An Ergonomic,Vertical, Wireless mouse for right-handed users
  • Neutral position : Unique shape avoids forearm and wrist twisting
  • Thumb rest : Large thumb resting area provides relief
  • Extended lip : Wide lip along the bottom edge prevents the small finger from continuous rubbing against the desk
  • Suitable for a regular hand size: 7" or 178 mm from the tip of the middle finger to the wrist crease
  • Please see, if your hand is smaller
Model VM4RW
Manufacturer Evoluent
Part Number VM4RW
UPC 852153015215
Frequency 2.4 GHz
Compatible Windows, Mac, Linux and Unix
Mouse Type Vertical
Wireless Yes
Trackball No
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