iHome and New Balance have teamed up to produce the US$99 NB639 Fitness Evolved headphones.
Features include: a chronograph workout timer; pedometer; the ability to track the total number of steps and distance traveled; a heart rate monitor, the ability to measure heart rate beats per minute and calories burned; real-time voiceover feedback; the ability to announces heart rate, caloric burn, steps taken and distance stats without pausing your music or your workout.
HeartPal Graphing software sorts your information by days/weeks/months, and summarizes performance data, allows you to customize your results and set goals. The NB639 also sport eetachable ear cushions fit a variety of ear sizes.