Description

Trackball design with an extended broad palm space and mild curves assists in keeping hand fortable and supported all dayCompatible with left or right handed use Forward and backward buttons make Internet browsing more uncomplicated and more convenientFast accurate keep an eye on with smooth-tracking Marble optical technologyPatented technology supplies smooth tracking on virtually any surface USB or PS2 port connectionPC and Mac patibleCompatible with Windows Vista XP and Mac OX X 10.3.nine or laterIncludes USB-to-PS/2 adapter