3-Stage cleaning system picks up everything from small particles to large debris, to pet hair. The auto-adjust cleaning head automatically adapts its height to keep the dual multi-surface brushes in close contact with different floor surfaces. To effectively clean carpets as well as hard floors. Dirt detect sensors recognize concentrated areas of dirt and prompt the robot to clean them more thoroughly. Just press the "clean" button and Roomba goes to work, no programming required  125 Entries at £4.50 Free Delivery To The Winner For free entry see T&C's *If all of the tickets the competitions does not sell out by the time  the countdown timer reaches zero, an additional 7 days will be added on to the countdown timer.   If all of the tickets have not sold after the first extended time period,  a 7 day extension will be added up to a maximum of 4 times.  If all tickets have not been sold after 4 extensions of 7 days,  a cash alternative prize of 70% of tickets sales will be awarded  to the winner instead of the prize. 