Greenworks, 80V 21" Self-Propelled Mower. Greenworks sensors tell our TRUBRUSHLESSTM motor to rush power to the mower blades. The deck is forged with heavy-duty steel, ready to tackle any terrain. Add in algorithms and a brushless motor toreach unrivaled blade speed. Simple to start with just the push of a button. Effortless to mow because it's self-propelled. Gentle on the ears because it mows quietly. A cinch to store in small spaces you can even hang it up if you want to. Additional features include a 4-in-1 cutting deck lets you choose your cut finish from mulching, bagging, side discharge, or turbo mode for leaf pick up. Zero gas smell. Zero pull cords. Zero maintenance. Zero pollution breathed. Zero time wasted.