Kobalt's 24-volt brushless motor provides 3.6 times more run time and longer motor life as compared to a brushed motor - the run time is approximately 50 minutes when using the included Kobalt 24-volt 4.0Ah battery Turbine fan produces air flow of up to 410-CFM and 100-MPH Variable-speed trigger, with lock-on cruise control, for maximum user control Designed to be lightweight, at only 4.4-lbs, to help reduce user fatigue Kit includes: leaf blower, blower tube, 4.0Ah battery, and standard 45W charger (a 110W quick charger is sold separately - item #672833)