Advanced driver design for precise audio clarity. Extra large speaker drivers for super deep bass.  High powered digital amplifier plays hip hop, rock, R+B and more loud, without distortion.  Monster headpohnes cable with Quadripole twisted pair construction for balanced sound and clarity.  Powered Isolation technology actively cuts external noise.  Spacious earcups with plush, breathable cusions for ultimate listening comfort.  Included iSonitalk cable with answer button andmic lets you take calss with iPhone or other music phones.  Push to listen button instantly mutes music.  Cleaning cloth wiht antimicrobial treatment polishes and controls germs.  Includes rugged carrying case, AAA batteries, 1/4" adapter, airplane adapter.