The Bose mobile in-ear headset combines Bose's acclaimed in-ear headphones with a custom-designed audio cable featuring an inline microphone for phone calls. This integrated headset delivers high quality audio for your music, and switching between music and calls is easy. You can use the Bose mobile in-ear headset with many compatible phones, including the latest music phones. The audio cable's primary connector fits directly into Apple iPhone and other mobile phones with 3.5 mm jacks, as well as most laptops and portable players. A set of four adapters is included for connections to many other popular cell phones. This headset features proprietary Bose technologies that produce high quality audio in a compact, comfortable headphone design. Just plug into your music source and experience full-bodied, well-balanced audio that brings out details and subtleties you may not have noticed before.