BLACK+DECKER POWERSERIES Extreme MAX Cordless Stick Vacuum, Home and Pet Hair Vacuum (BHFEB520D1)HELPS REDUCE HAIR WRAP with the anti-tangle beater barCYCLONIC FILTRATION designed to keep filter clean20V MAX* POWERCONNECT SYSTEM COMPATIBILITY: Removable battery works with BLACK+DECKER 20V MAX* Lithium-Ion Battery System *Maximum initial battery voltage (measured without a workload) is 20 volts. Nominal voltage is 18 volts.UP TO 37 MINUTES RUNTIME** in stick vac mode **Per charge, measured at low speed in stick vacuum modeUP TO 56 MINUTES RUNTIME** in hand vac mode **Per charge, measured at low speed in hand vacuum modeEASY-TO-REMOVE BEATER BAR for easy maintenanceLED HEADLIGHTS help illuminate hidden dirtSELF-STANDING for easy storage + charging with no leaning necessaryHANDHELD CLEANING: Easily converts to a hand vacuum for cleaning stairs, furniture, + hard-to-reach areasMULTI-SURFACE CLEANING: Tackle dirt, dust, + debris with ease for a multi-surface clean