The battery-powered and cordless KSM-6101RF-EGT is suitable for use at any desk or location. With a range of 8 metres, a large working radius is available without restrictive cables. The connection is established via a 2.4 GHz radio link.The proven trackball technology is precise and offers accurate cursor control for all applications. Whether surfing the web, using multimedia or office applications, the KSM-6101RF-EGT masters any terrain with effortless handling and offers comfortable control.