The WORX WG584 430cfm 40V(2x20VLi-ion) Blower. Electric blower Powerful 40V Max Lithium lightweight cordless blower with TURBINE technology and a brushless motor delivers up to 430 cfm of air velocity. The three-speed control function allows for light-to-medium duty cleaning while the TURBO option blasts leaves from any type of surface. FEATURES:Dual 20V Power Module batteries delivers 40V Power and Performance. Highly efficient brushless motor design for long lasting power; Three-speed control with TURBO boost; Air volume speed/volume: 1: 60mph / 300cfm, II:69mph / 350cfm, III: 80mph / 390cfm ; Turbo: 95mph / 430cfm; 430 CFM Powerful blowing force to tackle any job; On-board battery charge level indicator; Lightweight and ergonomic one-hand operation; Charging time: 2.5 Ah (1pc): 75 min, 2.5 Ah (2pcs): 150 min.