The Dual Mode Virtual Wall® Barrier enables you you define better where your robot cleans. There are two modes available :
Virtual Wall Mode keeps your iRobot in the rooms you want cleaned and out of the ones you don't.
Halo Mode keeps your robot away from items you want to protect by creating a 4-foot diameter keep out zone.
This device is compatible with Roomba 900, 800, 700,600 and 500 Series.