1、The blower can be used for both blowing and suction, and can be used as an electric blower or as a vacuum cleaner. 2、A built-in filter at the entrance of the machine can prevent large particles from entering and clogging and damaging the machine. 3、The blower supports infinitely variable speed and can control the air volume according to the pressure. 4、The ergonomically designed handle is non-slip and does not hurt your hands. It saves effort during operation and is convenient to hold. 5、The blower has a fast running speed, a large air output, and a good blowing and suction effect. It is suitable for industrial production and electrical equipment. Item Type: Cordless Blower Power Supply Type: Rechargeable-lithium battery Battery Specification: 2000mAh Lithium batteryRated Voltage: 21V Rated Input Power: 1200w Vacuum Device: Equipped Air Volume: 3.8m³/min Wind Pressure(Water Column): 1950kpa Number Of Revolutions: 20000rpm Standard Accessories: One battery one charge 1 x Blower 1 x Air Duct 1 x Hoop 1 x Dust Bag 1 x Battery Box 1 x Adapter 1 x User Manual