40V MAX Cordless Lithium-Ion XR Brushless Blower - DCBL790R. 40V MAX 4.0 Ah Lithium-Ion Battery - DCB404. 40V MAX Lithium-Ion Battery Charger - DCB114. Produces up to 120 MPH to create 400 CFM of air flow performance. Variable trigger and speed lock allows you to select your speed and keep it constant. Lightweight and ergonomic design minimizes fatigue during prolonged use. Designed to withstand everyday heavy-duty usage