The new Rainbow E2 Series 12 has upgraded the power nozzle, and wands, by integrating the wire completely. The Power nozzle also has new LED lights, as well as a unique Rotating side brush on both sides of the power nozzle, helping to get all the way in the corners for easy cleaning on sides. The new E2 Rainbow System is now sponsored by the American Allergy and Asthma Foundation, giving the E2 Series 12 a thumbs up to filtering capability, especially for homes that have allergies or breathing issue. The machine is brand new in the box and never been opened. The 4 Year Parts & Labor warranty is provided by GoVacuum, who is not related to the Rainbow company. The new rubberized dolly makes dragging the rainbow around the home easier, and prevents any scuff marks on the walls or baseboards. The vacuum can also be run as an air freshener and cleaner being run on the lower of 2 speeds. 60 Day Risk Free Money Back Guarantee on this machine from GoVacuum.