36V, lithium-ion battery, brushless, 1/2 gallon, HEPA filter, backpack dry vacuum. Up to 116 minutes of continuous operation using two 18V LXT® 5.0Ah batteries. Brushless Motor generates 70 CFM of suction power and 44" of water lift. Two stage HEPA filtration system captures 99.97% of particulates .3 microns and larger. Push button power selection controller for 3-speed operation. Includes two 18V LXT® lithium-ion 5.0Ah batteries, dual port rapid charger, flexible hose, telescoping extension wand, floor nozzle, HEPA filter and filter dust bag.