Illuminated cleaner head reveals hidden dust on hard floors.2 A piezo sensor continuously sizes and counts dust particles – automatically increasing suction power when needed. LCD shows what’s been sucked up in real time.The lightest cordless vacuum with 150AW of powerful suction,Powerful, lightweight digital motor spins up to 125,000rpm to suck up microscopic dust and large debris.11 root cyclones generate centrifugal forces of up to 100,000g to capture dust and debris from the airflow, so there’s no loss of suction.Each Click-in battery provides up to 60 minutes of fade-free power to clean here, there and everywhere around your home,Dyson’s fully-sealed filtration traps 99.99% of microscopic particles and allergens as small as 0.3 microns – and expels cleaner air.0.35 L, Charge 4 hrs