The Vornado Energy Smart™ line includes the 533DC—a more compact, DC-motor air circulator with up to 80 percent energy efficiency. Simple variable speed control gives you precise airflow up to 75 feet while our signature Vortex Action creates whole-room circulation, keeping the entire room cool and comfortable. Plus, the 533DC is backed with an industry-leading 10-year satisfaction guarantee. Energy-saving brushless DC motor Variable Speed control Powerful airflow, moves air up to 75 feet Ultra-quiet operation Multi-directional airflow Sleek, stylish design 10-year warranty 7x9.65x11.3" 3.44 lbs. Features: Ac Power, Cooling Voice Activation: No Voltage (volts): 120v Maximum Temp (f): 86 Degrees F Control Types: On/Off Switch Country of Origin: Imported