LINE IQ™ Technology: Autofeed, no bump, high performance trimming. POWERLOAD™ Technology: feed the line, push a button and go. Telescopic Carbon Fiber Shaft quickly fits your height for ultimate comfort. Continuous 16 In Cutting Swath. High-Efficiency Brushless Motor. Professional-grade, dual line spiral-twist 0.095 in line. Digital 2-Speed Selector. Weather-resistant construction. 5-Year Tool Warranty, 3-Year Battery Warranty