Betco's Stealth™ DRS Automatic Scrubbers are equipped with Noise Reduction Technology that make this the most quiet machine in its class. The 32" clean path provides maximum productivity while the exclusive one-touch Intelligent Drive Control makes operation simple. With up to 4 hours of runtime, large area day cleaning is now a reality with the Stealth™ DRS Scrubbers - the only thing to notice are clean and dry floors!