Nitro 40-Volt (2x20) Cordless Self-Propelled 3-In-1 Lawn Mower, Brushless Motor, 20-In. Deck

20" - 40V (2x20) Lawn Mower. Gas-like power Worx outdoor tools are engineered to provide gas-like power, performance, and run time. Self-propelled lawn mower featuring rear-wheel drive with variable speed control. 3-in-1 functionality Mulch / Bag / Side-Discharge. Brushless motors are more efficient, run 50% longer, are 25% more powerful, and have 10% longer life.