Bose IE2 audio headphones are specially re-engineered to offer you great quality sound. They let you enjoy your favorite music or listen to sports commentary while jogging, exercising or traveling. Their silicon StayHear tips conform to your ear"s shape, offering a secure yet comfortable fit. Bose stereo headphones" detachable silicone tips come in 3 sizessmall, medium and largeto offer a customized fit. They have flexible and durable cables. Their TriPort acoustic headphone structure delivers smooth, natural sound. Plus, they reproduce tonally balanced audio, so you can hear even the low notes. These in-ear headphones" angled plugs make them compatible with most iPod models, MP3 players, laptops, DVD players and portable CD players. They come with a carrying case, which has enough room for headphones and a portable MP3 player.