Helps reduce hair wrap with the anti-tangle beater bar Cyclonic filtration designed to keep filter clean 20V 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 42 minutes runtime** in hand vac mode **per charge, measured at low speed in hand vacuum mode Easy-to-remove beater bar for easy maintenance LED headlights help illuminate hidden dirt Self-standing for easy storage + charging with no leaning necessary