Listen to everything with the impressively deep sound of EXTRA BASS. The MDR-XB55AP In-ear Headphones are designed to pack a punch where needed with 12mm neodymium driver units. Tangle free cord Color - Blue Ear Placement - In Ear Form Factor - In Ear Headphones Jack - 3.5 mm Jack Model Name - Sony Extra Bass Earbud Headphones EXTRA BASS for club-like sound Inline remote and mic for hands-free calls 12mm neodymium driver units Powered Bass Duct++ for extra deep bass Tangle-free cable Four sizes of earbuds tips 3.5mm connector