20 Max V Lithium Ion. Cordless removable battery. 3x cleaning system multi-surface clean up; multi-debris pick up; Anti-tangle brush bar. Up to 75% better pick up on carpet (compared to black=decker HCUA525JP). Maximum initial battery voltage (measured without a workload) is 20 volts. Nominal voltage is 18. Twist to clean-Built-in filter cleaner provides up to twice the suction. Versatile cleaning on stairs, couches, and more. Clean out-of-reach areas. Self-standing design, no leaning necessary. Led floorhead brightens so dirt can’t hide. Effectively picks up pet hair on upholstered furniture. Removable battery for convenient charging in or out of vacuum. Up to 55 minute runtime (In low speed with brush bar turned off). US & Canada only. 1 battery 20 V max lithium system. Over 12 million batteries sold 1 system. Endless tasks. Interchangable cordless battery for: Power tools; Lawn+garden; Home cleaning. Removeable battery for charging anywhere. Contains: (1) Removable battery stick vacuum. (1) 3 in 1 Multiway charger; (1) Removable battery; (1) Crevice with flipout brush; (1) Low-profile pet accessory; (1) Accessory holder; (1) Washable filter + prefilter. Complies with UL/CSA/ANSI standards. A limited two year warranty: This product is covered by a limited two year warranty which is described in the enclosed instructions manual. Please contact the customer service desk in this store for warranty details. If you have any problems with this product or questions under the warranty, please contact us at 1-800-54-HOW-TO (1-800-544-6986). 30 day money back guarantee. If you are not completely satisfied with the performance of your black & Decker product for any reason, you can return it within 30 days from the date of purchase with a receipt for a full refund. www.P65Warnings.ca.gov. US and Canada 1-888-698-2571. Recycle. 1-800-822-8837. Tool, charger and accessories made in China.