Can be added to 20V MAX system of tools, or run by a cord. Offers wide-range variable speed control (up to 500 CFM). Can be freestanding, hung, or mounted. 7 In. blade fan has pivoting head to direct air. Runs up to 7 hours at maximum speed with 4.0 Ah DeWalt 20V MAX battery. Tested to IP54. Bare tool – battery and charger not included.