Backpack Vacuum, Vacuum Power Source Cordless, Vacuum Filtration Type , Vacuum Collection Type Bagless, Vacuum Capacity 1 gal, Vacuum Pickup Type Dry, Vacuum Air Flow 55 cfm, Static Pressure 75 in, Weight 15.2 lb, Sound Level 76 dB, Number of Motor Stages 1, Hose Dia. 1 3/8 in, Hose Length 9 ft, Voltage 18 V, Cordless Tool Battery Type Li-Ion, Includes Battery No, No. Batteries Included 0, Battery Capacity 9 Ah, Includes Charger No, Series M18 FUEL(TM), Features Backpack