iRobot Roomba 561

Three‑Stage Cleaning System • Agitate: Dual counter‑rotating brushes loosen dirt. • Brush: A spinning side brush sweeps debris into the path of the main brushes. • Suction: Picks up debris into a removable bin . Adaptive Navigation & Dirt Detection • Equipped with infrared sensors to avoid obstacles and prevent falls from stairs . • Includes acoustic dirt sensors that detect when an area is particularly dirty, prompting the Roomba to focus on that zone .