High Performance 40V Lithium-Ion Battery delivers fade-free power with no memory loss after charging Powerful DigiPro brushless motor offers greater performance without the hassle of gas and carbon emissionVariable speed dial along with a turbo button delivers on-demand power for up to 185 MPH of wind speed, which makes clearing your yard, driveway and patio effortless.Up to 340 CFM of air flow makes blowing through dry/wet leaves and debris a breeze.Quick and easy tool-less transition from blowing to vacuuming when the need arises leaves your yard looking pristine.Electric motor gets you started within seconds and eliminates the hassle of gas pull cords and hazardous fumes.Lightweight at only 9.92 lbs with battery providing all the power with none of the fatigue