The RYOBI 40V HP Brushless 730 CFM Blower 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 2 hours of runtime using (2) 40V 4Ah 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. Best of all, it is part of the 40V System - any 40V battery works with any 40V product. Batteries and charger sold separately.