The Dyson V15s Detect Submarine is engineered with the power, intelligence, versatility, and run time to deep clean your whole home. Now with three cleaner heads for all-in-one cleaning. The Submarine cleaner head washes hard floors and removes wet and dry debris simultaneously. The Fluffy Optic cleaner head reveals invisible dust on hard floors. The de-tangling Digital Motorbar cleaner head deep cleans carpets and hard floors without tangles and adapts suction power to floor type. A piezo sensor intelligently optimizes power and run time based on the debris picked up, reporting it all on the Lcd screen. The versatile cordless format transforms into a handheld vacuum with one click so you can clean up high, down low, and everywhere in between. Comes with a 2-year warranty and lifetime Dyson support. Accuracy may vary. Best accuracy in Auto mode. Auto ramp feature in Auto mode only..