Worx Nitro 80V 21" BL Self-Propelled Lawn Mower; Self-propelled with variable-speed control lever?; High-efficiency, rear-wheel drive brushless motor?; Durable, steel cutting-deck w/ Nutricutdual-stage mulching capabilities?; Auto-Intellicuttechnology automatically adjusts performance to grass conditions?; Quick-change between bag and mulch functions?; 7-position, single-lever cutting height-adjustment?; Onboard LED lights and battery charge-level indicator?.