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A trackball is a pointing device consisting of a ball held by a socket containing sensors to detect a rotation of the ball about two axes—like an upside-down ball mouse with an exposed protruding ball.
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Trackball
Ein Trackball ist ein Eingabegerät, das aus einem Gehäuse besteht, an das eine Kugel angebracht ist, die mit den Fingern bewegt wird. Im Gehäuse erfassen optomechanische oder optische Sensoren die Bewegung der Kugel entlang zweier Achsen. Wikipedia
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The trackball creates 20% less muscle fatigue in your hand, wrist, and forearm than a regular mouse. Plus, the unique adjustable tilt of MX ERGO lets you choose ...
Enhance precision and comfort with ELECOM Trackballs! Choose from several ergonomic shapes and sizes, connectivity, right or left-handed models, and more!
Find the perfect trackball mouse for your needs at Best Buy. Shop a large selection of trackball mice in assorted styles prices and brands.