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Specification * 2.4GHz Wireless Model * ELECOM Mouse Assistance software * Support Windows XP, Windows 7, Windows 8.1, Windows RT8.1, Windows 10 or

2.4GHz Wireless Finger-operated Large size Trackball Mouse 8-Button Function with Smooth Tracking, Precision Optical Gaming Sensor Palm Rest Attached

Logitech's MX Ergo says scram to cramps and brings back the trackball

Image Wireless Finger Handheld USB Trackball Mouse with Laser Pointer

PEIOUS Trackball Mouse Wireless - Ergonomic Rollerball Mouse with RGB Backlit,(2.4G USB + Bluetooth) Connection Thumb Control Mouse Rechargeable Compatible with iPad, Mac, Windows PC - Black : Electronics

Kensington Expert Mouse Trackball

Computer Adaptations for People with Parkinson's Disease - Adaptive Tech Solutions, LLC

Clearly Superior Technologies SAM Trackball Switch Adapted Mouse Device

Large artificial ruby of 2.5mm is adopted in diameter to support the ball. Wireless track ball of the left hand and thumb operation type are designed to realize pointer flattery characteristics equipped with reliable basic performance.

Elecom Wireless Mouse Trackball 6-Button for Left Hand M-XT4DRBK

2.4GHz Wireless Finger-operated Large size Trackball Mouse 8-Button Function with Smooth Tracking, Precision Optical Gaming Sensor Palm Rest Attached (M-HT1DRBK)

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O-Trac Dual USB PS/2 Ergonomic Trackball Mouse

Trackball, PDF, Human–Machine Interaction

A child with cerebral palsy operates a mouse via an Integrated Pointing

Microsoft reinvents the mouse for people with disabilities

BIGtrack Trackballs