The Dyson DC44 Animal (Dyson Digital Slim Mk) is the most power efficient cordless vacuum. The Dyson Digital Slim Mk2 vacuum is powered by the Dyson digital motor – Dyson’s fastest, highest power density motor ever developed. It spins five times faster than a Formula 1 car engine. Since it's small, strong and energy efficient, it's lightweight and powerful. The DC44 Animal has anti-static carbon fibers in the brush bar to remove fine dust particles from hard floors. With up to 20 minutes of constant power, the Dyson Digital Slim Mk2 picks up more than other cordless stick vacuums. And Dyson’s patented Root Cyclone technology spins dust and dirt out of the air using centrifugal force, so there’s no loss of suction.