27 cc, 2-cycle forged full crank engine with Spring Assist starting system. Variable speed settings to control air flow around plants and flower beds. Air speed/air flow: 150 mph/450 CFM. Includes easy-to-attach vacuum kit that mulches at a 16:1 reduction ratio and 1.5 bushel collection bag. Dual operating handle for easy left or right handed use. 2 year limited warranty.