DUOCLEAN DETECT: The two-brushroll system with Intelli-Sense sensors automatically reacts and adapts brushroll speed for optimal performance. FLOOR DETECT: The Intelli-Sense ultrasonic sensor detects the type of floor you're cleaning, and Shark POWERDETECT automatically adapts brushroll speed for optimal performance on all surfaces. DIRECTION DETECT: The Intelli-Sense directional sensor automatically recognizes the direction you are vacuuming and POWERDETECT directs its powerful suction forward or reverse for maximum cleaning in both directions. SELF-STANDING: After cleaning, POWERDETECT stands and stores easily without falling over. ULTRA-LIGHTWEIGHT: Weighs less than 10 pounds for easy lifting and maneuverability. NO HAIR WRAP: The self-cleaning brushroll delivers powerful pet hair pickup without wrapping hair. GUARDS AGAINST BAD ODORS: Odor Neutralizer Technology guards against bad odors inside your vacuum to help freshen your home. ANTI-ALLERGEN COMPLETE SEAL: Works with a HEPA filter to trap 99.99% of dust and allergens inside the vacuum, keeping them out of the air you breathe*. *Based on ASTM F1977 of particles 0.3 microns or larger. Allergens refers to non-living matter. *Based on ASTM F558, measured at the hose. **Large particle cleaning, based on a geomean of ASTM F2607 and IEC62885-2 (5.5) versus upright market. WHAT'S INCLUDED: Pet Power Brush, Upholstery Tool, Crevice Tool, & Odor Neutralizer Technology Cartridge