Shark POWERDETECT Ultra-Light Corded Stick Vacuum with DuoClean Technology, Self-Cleaning Brushroll for No Hair Wrap, Anti-Allergen Complete Seal, and Odor Neutralizer Technology, HZ4002

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.