Roomba owners, this 2-pack of virtual wall barriers gives you total control over where your robot cleans! The dual mode functionality is genius - Virtual Wall mode keeps your Roomba in the rooms you want cleaned and out of areas you don't. Halo mode creates a protective circle around things like pet food bowls, water dishes, or delicate items you want to protect. Compatible with Roomba 500, 600, 700, 800, and 900 series robots, these barriers are essential for smart cleaning. Each unit measures 4x2.87x4.52 inches and runs on batteries (included). Set them up in doorways, around Christmas trees, or near any area you want to keep off-limits to your robot. The setup is super simple - just place them where you need protection and turn them on. They've seriously improved since earlier models with better range and reliability. If you're tired of rescuing your Roomba from tight spaces or cleaning up spilled pet food, these virtual walls are absolutely worth the investment. Your robot will clean more efficiently, and you'll have way fewer 'my Roomba got stuck again' moments!