The RYOBI 40V HP Brushless 21" Multi-Blade Self-Propelled Cordless Lawn Mower delivers the power of gas with the convenience of cordless. The premium HP brushless motor provides more power, longer runtime, and a longer motor life. It starts with just a push of a button and the self-propelled rear wheel drive features a SMART TREK technology variable speed paddle so you can easily match the mower's speed to your own pace. This mower is ideal for yards up to 3/4 acre, featuring dual active battery ports and 2 40V 6Ah batteries that provide up to 70-minutes of runtime. The CROSS CUT Multi-Blade System offers two blades for superior cutting performance or a single blade for longer runtime. The durable 21" deck is lightweight, resists corrosion, and is covered by a lifetime warranty. The mower has a large 11" high wheel design and the deck features 7-position single point height adjustment to easily select your grass height between 1.5" and 4". With the 3-in-1 mowing functions you can choose between bagging, mulching, or side discharge functions. An easy lift single motion bag removal allows you to quickly and easily empty the grass catcher bag and 1-touch aluminum handles fold for compact, vertical storage. This mower includes a 40V rapid charger to charge your batteries 4X faster than the standard charger. This mower is proudly made in the USA with global materials and is backed by a 5-Year Tool Warranty.