Tests conducted by the Hammacher Schlemmer Institute proved this cordless stick vacuum to be The Best because it removed debris from both carpets and hard surface floors on the first or second pass and was the easiest to maneuver. The Best Stick Vacuum quickly suctioned salt and oatmeal on the first attempt, unlike lesser models that required three or more passes to remove the detritus. The Best model's powerful motor suctioned dirt from tile grout after only two passes, while other stick vacuums needed repeated attempts. Unlike other models that required up to 18 hours to recharge, The Best Stick Vacuum's 18-volt lithium ion battery recharges in only 3 hours and provides up to 20 consecutive minutes of vacuuming. Scoring highest for ease of use, The Best Stick Vacuum's handle reclines 90° and the base is only 2" high, allowing it to clean hard-to-reach areas underneath furniture. 44" H x 9" W x 11" D. (7 1/2 lbs.)