The Roomba Scheduler.

The Roomba Scheduler makes quick work of minor cleanups and daily floor maintenance. The floor vac has brushes that scoop debris towards the built-in vacuum, which picks up finer dirt, trapping it all in a 31 cubic inch dustbin. A sensor detects stairs and other drop-offs, and two included scheduling walls create an infrared beam that confines the floor vac to one room and lets you schedule to clean at preset times of your choosing. The Roomba Scheduler has "spot clean" and "max clean" functions for areas that need extra attention, and uses new dirt-sensing technology to locate and focus on heavily soiled areas. The advanced power system battery lasts a full two hours. Roomba Scheduler automatically returns to its drive-on charger to power-up when its battery runs low. Turns off when picked up, and charges in 2 1/2 hours. Includes scheduling remote and two scheduling walls. Most effective when used on hard floors and low-pile carpets. Remote requires two AA batteries. Only available for delivery in the Continental U.S. and Canada.