The RYOBI 40V HP Brushless 16” Carbon Fiber Shaft String Trimmer Kit delivers more power than a 27cc gas trimmer, making it a true gas replacement. 40V HP technology combines a powerful brushless motor, advanced electronics, and high performance lithium technology to provide more power, runtime, and durability with over 45 mins. of runtime using a 40V 4Ah battery. Save money, time, & space with attachment capability & transform your string trimmer into a variety of tools. This trimmer is compatible with RYOBI EXPAND-IT attachments & other universal attachments to take on any job around the yard. Tackle thick weeds & grass with the adjustable 14”-16” cut swath. Easily optimize for runtime or performance with the tool free integrated sliding guard, allowing you to quickly adjust your cut swath. This trimmer also has a durable carbon fiber shaft for a lighter weight trimming experience. Achieve max. control with the variable speed trigger & quickly change the speed with the 2 speed switch for optimal power/runtime. Conveniently reload your .095” line in under 60 seconds with the REEL EASY+ 3-in-1 bump-feed head. Your 40V 4Ah battery recharges in less than 60 minutes with the included 40V Fast Charger. Best of all, it is part of the RYOBI 40V system where any 40V battery works with any 40V product. This 40V HP Brushless 16” Carbon Fiber Shaft String Trimmer Kit is backed by the RYOBI 5-Year Manufacturer's Tool Warranty, 3-Year Manufacturer’s Battery Warranty.