Battery 18V/4.0Ah*1.Low 11000±14%r/min.Middle 15000±11%r/min.High 19000±10%r/min.Air Volumel 1.6-2.8m³/min.Net Weight 1.9kg.Features 3-Speed variable speed control.Two functions Suction and blowing.Accessories & Package Battery Charger, 4.0Ah Battery Pack, Dust Bag, Color Box Packing.