Audio Technica Solid Bass&reg; In-Ear Headphones with Volume Control for iPod/iPhone/iPad (ATH-CKS99i) Newly developed Double Air Chamber System expands bass output for powerful bass without sacrificing audio clarity Exclusively designed 13 mm drivers create an entirely new rich audio experience 2 position post maximizes sound isolation while providing a better fit Answer/end calls, control music & video playback & control volume on iPod, iPhone & iPad Carrying pouch & XS/S/M/L ear tips included