The BGA 57 delivers powerful STIHL performance combined with great control and comfortable operation. This blower puts out 103 mph of average air velocity (123 MPH maximum air velocity) combined with 365 CFM for effective clearing of leaves and other yard debris. A slim design and even weight distribution allow the blower to be held close to the user’s body, keeping fatigue to a minimum while maximizing maneuverability.The BGA 57 has a run time up to 18 minutes on a single charge with the AK 20 battery*, making it an ideal choice for homeowners to care for their yard, deck, sidewalks, driveway and more.