1.Operate and clean on its own; 2.Saves labor costs associated with floor cleaning. While our machines clean the floors, your staff can be reassigned to work on higher-level projects, dramatically reducing your floor care costs. 3.Runtime is approximately four hours per battery pack. 4.Cleaning quality is predictable and consistent. 5.Sensors detect obstacles as well as people -- stopping to let them pass before proceeding -- and stairs, to prevent unwanted spills. -