Kensington Pro Fit Ergo Vertical Wireless

Despite its ergonomic design and plenty of customization options, the Kensington Pro Fit Ergo Vertical Wireless Trackball suffers from a stiff housing that results in jerky cursor movements.

These days, the vast majority of mice utilize optical sensors. And, when compared to older mechanical mice, optical mice offer a lot of advantages. For one thing, you can use them on a wider variety of surfaces. For another thing, they’re not as susceptible to dirt and grime, and they’re easier to clean when necessary. They also have no mechanical parts, which means there are fewer potential points of failure. That said, optical mice require at least a moderate amount of space for use. On an airplane tray table or a crowded conference table, it’s easy to run out of