The Double Action Dustbuster utilizes an exclusive two stage filtration system that improves performance and provides longer run time. Dust and debris are deflected back into the bowl which allows the filter to last three times longer. The bowl provides 70-percent increase in capacity so less time is spent emptying it. When you need the crevice tool or firm brush for specific applications, they are right there on the unit. Power is not a problem, the Dustbuster has 7.2 volts of pick-up power. The wall mountable charger allows you to keep your Dustbuster where you want it and ready to use. Your purchase includes the Dustbuster, crevice tool, firm upholstery brush, wall mountable base, and one filter set. Get to those hard-to-reach places with this Black and Decker Double Action Dustbuster. The exclusive filter lasts three times longer than other leading brands and deflects debris into the extra-large, easy-to-empty bowl. Features an onboard crevice tool and firm brush, mountable recharging base and a convenient lock on switch.