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* Robotic floorvac with dirt detection and convenient infra-red cliff sensors
* Auto adjusts to any floor surface; edge-cleaning sidebrush; 3 cleaning modes
* Self-charging home base; automatically docks and recharges in under 3 hours
* Extra-large debris bin; 2 virtual walls and remote control included
* Measures 16-3/4 by 21 by 5 inches; 1-year warranty

iRobot Roomba 4220 Discovery SE Intelligent Floorvac Vacuuming Robot, Grey