Suction Dial, Motor Speed Control, Manual Electronic Power Control Adjusts from 300 watts to 1200 watts. 4800 RPM electric motor drives the revolving On Off Switch brush roll. #3 Consumer Reports Recommended Upright Vacuum Cleaner *CR Summary: "Overall, this is a very good and relatively quiet upright vacuum that excelled at picking up pet hair and keeping emissions low. Highs - The Miele was very good at cleaning carpets and bare floors, and had very good airflow for tools. It was also excellent for pet-hair pickup and emissions. It was relatively quiet for an upright vacuum. Lows - This model scored only fair in handling."