In Auto mode the Dyson V15 Detect intelligently optimizes suction and run time based on dust level and floor type. A piezo sensor and Dyson DLS technology automatically sense debris level and floor type to adapt suction for the right balance of power and run time when you need it. The Laser Slim Fluffy cleaner head reveals hidden dust on hard floors and the High torque cleaner head with anti-tangle comb adapts to all floor types. The Dyson V15 Detect calculates and categorizes picked-up particles, showing you on-screen as you clean. It also, displays run time countdown, power mode, and maintenance alerts. Up to 60 minutes of run time. Advanced whole-machine filtration traps 99.99% of particles, dust and allergens as small as 0.3 microns. Engineered for large homes with pets.Converts to a handheld for cleaning cars, stairs and upholstery. In the box 2 cleaner heads and 5 Dyson engineered tools for versatile whole-home and car cleaning. Including the Hair screw tool with an anti-tangle conical brush bar for removing pet hair from upholstery and tight spaces.