The RYOBI 2 Cycle Backpack Blower is the most powerful residential backpack blower on the market. CROSSFORCE Fan Technology delivers a best in class 760 CFM and 175 MPH. The large 38cc engine provides more clearing power and is uniquely positioned for increased efficiency. This blower features a variable speed trigger and cruise control, giving you the ability to conveniently adjust the speed for each task. Enjoy comfort and support no matter how long you work, with the adjustable shoulder straps and contoured back. The RYOBI 2 Cycle Backpack Blower is backed by a 3 Year Limited Warranty.