The EGO POWER+ 600 CFM Backpack Blower is 8 times quieter and weighs half as much as comparable gas blowers. Turbine-fan engineering moves air at a staggering 600 CFM. Variable-speed control allows you to dial the power up or down for superior control . from 320 cubic feet per minute to 600 cubic feet per minute . and the turbo button gives you max power for heavy-debris-clearing power. The Backpack Blower’s high-efficiency brushless motor delivers longer run time . low vibrations and an extended motor life. The advanced EGO POWER+ 56V battery (not included) uses industry-leading Arc-Lithium technology to deliver Power Beyond Belief and is compatible with all EGO POWER+ products. Battery and charger sold separately.