The most powerful, intelligent cordless vacuum~ with a laser that reveals microscopic dust. Engineered for whole-home, deep cleaning it has suction power, run time and tools designed to deep clean your whole home. 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.