An iRobot Roomba Virtual Wall creates an invisible barrier that Roomba won't cross. That makes it easy to confine Roomba to a particular room or area, and prevent it from getting too close to anything delicate or dangerous.

You can set a Virtual Wall to block openings of up to approximately 7 ft (2 m). It creates a cone-shaped barrier, so the beam gradually gets wider.

An iRobot Roomba virtual wall is battery-operated, so you would need to replace the batteries when they run out. The good news is that you will know when to replace the batteries because the power indicator will flash a green blinking light. When this happens, make sure that you have replacement batteries on hand. This virtual wall uses 2 “C” Alkaline batteries (not included).

Two modes. An iRobot Roomba virtual wall has two modes. You can create a virtual wall manually by turning it on yourself as soon as you start your cleaning. The virtual wall will automatically turn itself off after two hours and 15 minutes. You can also have it turn on automatically.