Voice-over is spoken by a mature-sounding English man: "It's almost like having an upright in the palm of your hand. The Devil is lightweight (Devil), powerful (Devil), has a wide opening (Devil) with a revolving brush...Get a Devil."
Trivia
Devil is a detourned television commercial for Dirt Devil (a brand of portable vacuum cleaner).[1] The original audio has been edited to to remove instances of the word "dirt" and much of the persuasive advertising language; echoes of the word "devil" have also been added.