The RYOBI 40V HP Brushless 730 CFM Blower & Backpack Power Supply Kit has more power than a 27cc gas blower, delivering exceptional performance without the hassle of gas. 40V HP technology combines a powerful brushless motor, advanced electronics, and lithium technology to deliver 730 CFM and 190 MPH, making it ideal for damp leaves, heavy yard debris, and compacted grass. Achieve 3 hours of runtime using (2) 40V 6Ah batteries. This blower is part of the WHISPER SERIES™ and is engineered with noise dampening foam and a uniquely positioned fan to be 86% quieter than gas, so you can get work done without disturbing your neighbors. A variable speed trigger gives you maximum control in delicate applications like blowing leaves from mulch beds. Lock in your desired speed with cruise control for less fatigue while in-use and use the included speed tip to achieve maximum MPH. The included Backpack Power Supply allows for longer runtime and is compatible with other RYOBI 40V handheld tools. Use the blower with or without the Backpack Power Supply. Best of all, it is part of the 40V System – any 40V battery works with any 40V product. This 40V Blower is backed by the 5-year manufacturer’s tool warranty, 3-year manufacturer’s battery warranty, and includes the RY404010 40V Jet Fan Blower, OP40BPA 40V Power Supply/Rapid Charger, (2) OP40605 40V 6Ah Batteries, OP40BPA 40V Integrated Charger, Blower Tube, (2) Speed Tips, and Operator’s Manuals.