Power: Commercial-grade 2.1 horsepower from robust 51.7cc engine. Blow force: Delivers powerful 570 CFM, 250 MPH, 24.0 Newtons. Runtime: provides up to 60 minutes at full throttle on full tank. Backed by over 25 years of experience. PRORUN equipment is built for POWER and RELIABILITY. POWER: Commercial-grade 2.1 horsepower from robust 51.7cc engine. Blow force: delivers powerful 570 cfm, 250 mph, 24.0 newtons. RUNTIME: Provides up to 60 minutes at full throttle on full tank. CRUISE CONTROL: set and maintain a consistent speed. REDUCED VIBRATION: Anti-vibration system to reduce fatigue. EASY MAINTENANCE: Air cover removal requires no tools. Ergonomic design: adjustable waist strap for back support. Contents: blower, scrench multi tool, screw driver.