Pressurized Edge-to-Edge Cleaning - a wall of pressurized water that loosens and lifts stubborn stains with constant and relentless spray; Voltage (volts) : 120DualV Nozzle Technology - pulls up the dirty water so your floors dry fastExclusive SpinScrub Technology- 360 degree cleaning gently loosens dirt and cleans all sides of carpet and upholstery fibersSmartTanks System - separate tanks for clean and dirty water, so you can easily fill, empty and rinse each tank individuallyHeated Cleaning - powerful motor with forced heated air to help speed dry time