Amazon.com - 2-Pack Dual Model Virtual Wall Barrier Compatible with iRobot Roomba 500/600/700/800/900/e/i/s Series Robot Vacuum. Compare to Part 4636429
Amazon.com: Avaenzo 2-Pack Dual Mode Virtual Wall Barrier Light House Compatible for iRobot Roomba 800 900 I/S/E Series e5 e6 i4 i6 i7 i8 and All Plus Versions S9,5150,7550, e5120, e5152 :
Amazon.com: Avaenzo 2-Pack Dual Mode Virtual Wall Barrier Light House Compatible for iRobot Roomba 800 900 I/S/E Series e5 e6 i4 i6 i7 i8 and All Plus Versions S9,5150,7550, e5120, e5152 :
Overview of the Virtual Wall® Halo.
iRobot Roomba*Auto Virtual Wall with Halo sleeve *Protect your delicate areas!* | eBay