iRobot Roomba 536 Vacuuming Robot Cleaning head automatically adjusts to vacuum carpets and hard floors. Includes a set of replaceable brushes, two extra filters and two brush cleaning tools. AeroVac technology maximizes air flow through Roomba's cleaning head to pull hair and debris off the brushes and into the bin evenly. iAdapt Responsive Technology ensures Roomba vacuums every section of your room multiple times, getting into areas you cant easily reach, including under and around everyday obstacles and vacuuming until the job is complete. Preset up to seven cleaning times per week for Roomba to automatically vacuum wherever and whenever you want. Automatically senses dirtier spots and spends more time cleaning those area. Virtual Wall Lighthouse confines and guides Roomba from room to room, then guides it back to its Home Base to dock and recharge between cycles.