FASTEST 18V PERSONAL FAN;Cooling air speed up to 20.5 MPH and 850 CFM;Brushless motor for increased life;Modular connectivity with All PACKOUT components;The M18 REDLITHIUM XC5.0 Battery delivers over 3 hours on high and 6.5 hours at 75% speed;Integrated AC plug for extended runtime;Variable speed dial for optimized airflow;300-degree head rotation to adapt to any job;Reinforced design for impact, water, and dust resistance;Keyholes, pass-through holes and PACKOUT connectivity for various mounting options;Fits all M18 batteries;1-year limited warranty