iRobot Roomba Black Virtual Wall Lighthouse For RF Compatible Roombas only NEW | eBay
Virtual Wall® Lighthouse™ for Roomba® | iRobot | iRobot
iRobot Roomba Lighthouse - Virtual Wall - White | eBay
Got this roomba as a gift. Also received these lighthouses from another friend… are they compatible??? How do I get them to work? When I put batteries in lighthouse the led flashes