The 615 CFM EGO POWER+ Blower combines unprecedented power and performance! With air speeds up to 170 MPH, this blower can move heavy debris with ease. The lock-on speed-control dial allows you to adjust your speed from 200 CFM to 480 CFM for ultimate control. When you are ready to power through heavy debris, hit the turbo button for 615 CFM! All this industry leading power is combined with industry leading run times; get over 75-minutes of continuous run time when used with the recommended EGO 56V 2.5Ah battery. The high- efficiency brushless motor delivers longer run time, low vibrations, and an extended motor life. Turbine fan engineering, inspired by advanced aeronautics technology, performs better than premium gas-powered models. The included tapered nozzle makes clearing debris in all conditions easy. This quiet, lightweight and compact blower gets the job done faster and quieter than gas! Experience Power Beyond Belief without the noise, fuss and fumes. Compatible with all EGO POWER+ ARC Lithium batteries.