Ceratech Accuratus Toughball 2 is a 2.4GHz wireless multimedia keyboard with an optical trackball. It features a soft rubberized coating for a great tactile feel and durability, and has an operating distance of up to 15 meters. The integrated 800dpi optical trackball provides precise cursor control, and the inbuilt scroll wheel makes navigation easy. Multimedia and internet hot keys provide quick access to common functions, and the low battery indicator lets you know when it's time to change the batteries.