The RYOBI 40V HP Brushless 21" Self-Propelled Multi-Blade Mower delivers more power than a 170cc gas mower. It’s ideal for up to ¾ acre with dual active battery ports and runs for up to 70 minutes using (2) 40V 6Ah batteries. Experience the industry’s best 3-in-1 cutting performance with the CROSS CUT™ Multi-Blade System. This allows for less clumping when mulching, further & more even dispersal when side discharging, and when bagging the fine clippings fill from back to front to maximize space for less bag changes. El motor sin escobillas y su electrónica de vanguardia automáticamente reaccionan a las condiciones del corte: incrementan la velocidad de la hoja para eliminar los atascamientos y aumentan la potencia durante los cortes más duros. The SMART TREK™ adaptive variable speed self-propelled technology allows you to effortlessly adapt the mower's speed to your pace, so you can finish the job quickly, effortlessly, and for less fatigue. The handles quickly and easily collapse for compact, vertical storage. Y lo mejor de todo, forma parte del sistema RYOBI de 40 V, donde cualquier batería de 40 V funciona con cualquier producto de 40 V. This 40V HP Brushless 21" Self-Propelled Multi-Blade Mower is backed by the 5-year manufacturer’s tool warranty and includes the RY401015 40V HP Brushless 21” Self-Propelled Multi-Blade Mower, Grass Catcher Bag, Start Key, Mulch Plug, Side Discharge Chute, and Operator's Manual. Battery & charger not included.