General description The AlwaysH 2PCS Virtual Wall for Robot Vacuum Cleaner is designed to enhance the functionality of your iRobot devices, allowing you to control where your robot cleans. With its dual virtual wall system, you can easily limit the cleaning area, ensuring that your Roomba or Scooba avoids spaces you want to keep untouched. The compact design makes these virtual walls nearly imperceptible, and they operate on two AA batteries (not included). Technical specifications Virtual Wall Mode: Blocks openings up to 3 m with an infrared light beam Halo Mode: Creates a circular barrier with a diameter of 1.2 m Compatible with Roomba 500, 600, 700, 800, and 900 series robots Compatibility and accessories Compatible with Roomba 500, 600, 700, 800, and 900 series robots Contents of the box: 2 Virtual Wall dual function barriers