The Shark PowerDetect Pet Plus Clean & Empty (IP3253) system is the ultimate cordless solution for powerful, intelligent, whole-home deep cleaning. It features an Auto-Empty system that charges & empties your vacuum after every clean and holds up to 45 days of dirt and debris. PowerDetect is powered by Shark’s most powerful cordless suction* PLUS a redesigned DuoClean Detect nozzle with dirt-detecting intelligence and direction detect technology, making it THE BEST debris cleaning** of ANY cordless vacuum. While most vacuums push around debris in the back-stroke, the redesigned DuoClean Detect nozzle eliminates this problem by capturing more*** dirt, dust, and debris in forward AND reverse for faster cleaning****. PowerDetect has an impressive 70min of runtime***** and a MultiFlex wand for effortless under-furniture reach and flex storage.(*Based on ASTM F558, measured at the hand vacuum, tested in Boost mode)(**Based on Geomean of ASTMF2607 and IEC62885-2 (5.3 & 5.5) vs cordless market)( ***vs. original DuoClean nozzle)( ****vs. Shark Stratos IZ862H)( *****measured at the handvac in ECO mode)