. Experience Shark's best cleaning cordless vacuum with new reverse clean technology and Shark's most powerful cordless suction. Key Features . Shark's best cleaning cordless vacuum with new Reverse Clean technologyAutomatically empties and; charges after every clean so its always ready and; always chargedAuto-Empty Base locks away fine dust debris allergens and odours with Anti-Allergen Complete Seal and; Anti-Odour TechnologyDuoClean Detect Two brush-rolls and multiple sensors react and adapt for optimal performanceDirectionDetect Designed to work in both forward AND reverse for faster more efficient cleaningDirtDetect Automatically detects dirt and boosts cleaning powerEdgeDetect Senses edges and; corners and increases suctionFloorDetect Senses floor type and adjusts brush-roll speed and suction . Reverse Clean TechnologyMany cordless vacuums only pick up debris efficiently when you push them forward. With a patent-pending fin design the DuoClean Detect floorhead was designed