Vox is a tall and slim-figured, technology-themed demon who stands at 7 feet. He sports a flat-screen television for a head, with the monitor projecting eyes with red sclera, small cyan pupils and different-colored outlines - black for his right and cyan for his left. While using his hypnosis powers, or when he gets mad, his left eye gains a black spiral and the pupil becomes a cyan electric symbol. The screen also shows a mouth full of sharp, cyan-colored teeth and a cyan long pointed tongue.