iRobot - Manage where your robot cleans with a Dual Mode Virtual Wall Barrier, which keeps your Roomba in rooms you want cleaned and out of the ones your don't. Find out
Virtual Wall Dual for Roomba iRobot Virtual Wall
iRobot: Dual Mode Virtual Wall vs. Auto Virtual Wall - low/full battery testing - YouTube
iRobot Roomba 890 Wi-Fi Connected Robot Vacuum with Dual Mode Virtual Wall Barrier Black/brown R890020 - Best Buy
iRobot 4636429 Virtual Wall Barrier User Guide
How To Setup Dual Mode Virtual Wall | Roomba® | iRobot® - YouTube