Orbit Wireless Trackball with Scroll Ring, Black - 

Perfect for digital professionals, the Orbit® Wireless Trackball is built with Kensington's signature design and expertise. Trackball use ensures less wrist and hand movement, helping to reduce repetitive strain injuries and maintain long-term productivity. The trackball features a patented scroll ring and dual wireless connectivity with high grade security encryption. Customise the design to suit your workspace with programmable buttons, four dpi settings and detachable wrist rest.