ELECOM Wireless Trackball Mouse Red 6 Tilt Function Gaming Grade Optical Black (Thumb-operated), Left-Handed, Ball, Buttons, (Left/Right Scrolling),

This is a left-handed, thumb-operated wireless trackball that combines reliable basic performance with unprecedented new features. The trackball's movement detection sensor is a gaming-grade, high-performance optical sensor, and the new high-performance lens and optimized peripheral optical design provide exceptional pointer tracking. By using large 2.5mm diameter artificial ruby support balls, the feel of controlling the ball has been improved. In addition, the larger diameter of the support balls makes them less likely to get clogged with dirt such as fingerprints, reducing the frequency of maintenance. By focusing on the six bones and muscles of the hand that come into contact during operation, and by designing it to take into account the indentations and protrusions, we have achieved a new, easy-to-use "feel" as if the shape of the palm were directly reflected in the design. It features a speed change switch that allows you to switch between two pointer movement speeds: 1500 and 750 counts.