Irobot Roomba 440 Vacuum Cleaner

The roomba 440 cordless robot vacuums so you don't have to. Just press the clean button and roomba does the rest. Its powerful vacuum and counter-rotating brushes reach deep into your carpet to remove dirt, dust and pet hair. Virtual walls tell it where to clean by restricting off-limit areas, and it automatically senses and avoids stairs and drop offs, so it cleans the whole floor, under and around furniture and along walls. Unit automatically adjusts to vacuum carpets and hard floors, and senses dirtier areas that need more thorough cleaning. Spot mode quickly cleans up spills and concentrated messes.
features include:
navigates around rooms, under furniture, against walls and into corners
cleans up to 2 rooms in a single cleaning cycle
bagless design
spot mode detects dirtier areas and spends more time cleaning them
cleaning head automatically adjusts to the surface for seamless transitions from carpet to hard floors
2 virtual walls (require 4 c batteries, not included)
the irobot roomba 440 cleans thoroughly, smartly, and carefully using its sensors to avoid common pitfalls. . . Like the stairs
rechargeable battery and power supply
approximate dimensions: 13.5 x 13.5 x 3.25 inches.