iRobot Authentic Parts Dual Mode Virtual Wall Barrier Compatible with Roomba 600/700/800/900 Series Virtual wall mode keeps your robot in the rooms your want cleaned and Out of the ones you don't Halo mode keeps your robot away from items you want to protect, like your pet's food and water bowls Quick and easy set-up Low battery indicator Compatible with all rooms 600, 700, 800 and 900 series robots and scuba 400 series robots