ELECOM Wireless Bluetooth Trackball Mouse, IST Series, 5-Button, Thumb Operation, Bearing Support, for Windows, Mac, and Chromebook, Black,

The thumb-operated trackball "IST" offers an ergonomic shape that allows for comfortable operation and exceptionally smooth operation. Its ergonomic design allows for a natural grip without gripping. Its shape fits comfortably in your hand, regardless of hand size or grip style. The support unit uses high-performance bearings manufactured by MinebeaMitsumi. This reduces friction, resulting in a smooth ball control that feels like it's floating in the air. Since the ball surface does not rub against the support unit, dust does not accumulate on the support unit, ensuring long-term maintenance-free use. The support unit is easily removable and can be replaced with bearings or artificial ruby. *Replacement bearing units (M-BS10) and artificial ruby ​​units (M-RS10) are sold separately. The trackball is equipped with five buttons, including forward and back, which are convenient for web browsers and folder navigation. Button function assignments can be changed using the free downloadable ELECOM Mouse Assistant. Warranty: 2 years