Design
Colour of product	Black
Input device
Recommended usage	PC
Purpose	Office
Scroll	Yes
Scroll type	Ball
Device interface	USB
Movement detection technology	Trackball
Buttons type	Pressed buttons
Buttons quantity	2
System requirements
Windows operating systems supported	Windows 7 Home Basic,Windows 7 Home Basic x64,Windows 7 Home Premium,Windows 7 Home Premium x64,Windows 7 Professional,Windows 7 Professional x64,Windows 7 Starter,Windows 7 Starter x64,Windows 7 Ultimate,Windows 7 Ultimate x64,Windows Vista Business
Mac operating systems supported	Yes
Ergonomics
Cable length	1.5 m

All-day comfort and scrolling come together in the Kensington Orbit Trackball with Scroll Ring. The scroll ring allows you to fly through web pages and documents. And all while delivering comfort and space savings no mouse can match.