iRobot Roomba 4210 Discovery Vacuuming Robot, White Robotic floorvac with dirt detection and convenient infra-red cliff sensors Auto adjusts to any floor surface; 2-hour continuous cleaning; easy-to-empty debris bin Edge-cleaning sidebrush; stasis sensor; virtual wall for confining to designated area Rechargeable APS battery, 3-hour charger, 2 virtual walls, 2 air filters, and remote control included Measures 16-3/4 by 21 by 5 inches; 1-year warranty