iRobot Roomba 650/655 Robotic Vacuum Cleaner (Refurbished)

Model number: 650 or 655, depending on option
Can be preset to vacuum up to seven times per week
Combination of three technologies;

Agitate: brushes loosen embedded debris
Brush: counter-rotating brushes lift debris away from the floor surface
Suction: pulls debris away from the floor surface and into the bin

Cliff-detection sensors allow
Spinning side brush sweeps along wall edges and corners
Charging home base
Battery charger
AeroVac filter handles fibers like hair, pet fur, lint, and carpet fuzz
Auto virtual wall
Battery requirements: 2 C batteries (not included)
Product condition: refurbished