*Automatically returns to its Home Base to recharge between cleanings.*Virtual Walls tell Roomba where to clean by restricting off-limit areas.*Easily cleans hard to reach places, under beds and around furniture.*Side brushed reaches into corners and along edges to remove dust, dirtand debris. *Self-adjusts from carpets to hard floors automatically.*Includes Roomba 530 Vacuum Cleaning Robot, Rechargeable Battery,Self-charging Home Base, 2 Virtual Walls (require 2 D batteries each,*12.5in X 12.5in x 4in*22.5 Volts*One year warranty on this vacuum.*Model: 530.