Variable speed motor allows conserving the battery for greater efficiency and runtime. Simple to start; requires no gas, oil, or tune-ups. Removable 40V (volt) Max Lithium battery and highly efficient motor allows mowing up to 1/3 of an acre on a full charge. EdgeMax for close up to the edge cutting. Features easy 1-touch 6 cutting height adjustments of 1-1/2 In. to 4 In. with the pull of a single lever. 20 In. cutting path. 3-in-1 versatile cutting options: mulching, bagging, or side discharging. Lightweight high-impact polymer deck. Comfortable nonslip grip. 10 In. rear wheels. Folds easily for upright, compact storage. 21 In. W. x 34 In. H. x 16 In. D. Includes: (2) 2.0 Ah 40V Max Lithium batteries, battery charger, safety key, and 15 gallon rear nylon bag with frame.