iRobot 4210 - Manual (Page 7)

Roomba Accessories
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Roomba Accessories
Virtual Walls create a keyhole shaped area that Roomba will not
enter. Virtual Walls are great for keeping Roomba in or out of
rooms, or away from cords and other spots you don't want
Roomba to clean.
Virtual Walls will automatically shut off after approximately
130 minutes.
You can set Virtual Walls to block areas up to 13 feet wide.
Remember, at 13 feet, the far end of the beam will be very wide.
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You can store Roomba in your Wall Mount.
Follow the instructions below to install.
You can also charge Roomba
while it is in the Wall Mount.
Virtual Wall
Virtual Walls create an infrared signal similar to
that of the Home Base and Roomba Remote.
DO NOT set up Virtual Walls near the Home
Base or Roomba will see multiple IR signals
and will not dock.
Roomba Wall Mount