TrackballWorks™ lets you customize all 4 buttons, set cursor speed

DiamondEye™ optical tracking technology for premium cursor control and accuracy

Scroll Ring lets you scan up and down pages with ease

Large 55mm ball is designed as a perfect sphere to provide exceptional precision

Detachable wrist rest supports hand and wrist for ergonomic comfort

Reliable wired USB connection

Wired 180cm USB cable provides reliability and avoids need for batteries

Detachable wrist rest cradles hand in comfort

PC and Mac® compatible

Mac® running OS X or later with an available USB Port.** Internet connections or CD ROM drives to install the software.** Compatible with Windows®7, Windows® XP, Windows Vi