About this item Virtual Wall Lighthouse For iRobot Roomba 886 , 880 , 785 , 782 , 780 , 450 , 585 , 581 Black Virtual Wall Lighthouse uses an invisible infrared signal to help Roomba achieve the most efficient and thorough room-to-room cleaning. Contains Roomba in one room until the room is completely vacuumed then directs Roomba to clean the next room. The listing is for 2 Listed as used but have been used once.
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