Bissell Versus Cordless Bare-Floor Vacuum, 21R9A Cordless bare-floor vacuum cleaner runs up to 20 minutes per charge V-shaped base directs large debris into center suction path Arms pick up fine particles and capture debris in hard-to-reach places Low profile; bagless dirt container; foot-activated power switch Measures 8-4/5 by 10-1/2 by 43-1/2 inches