LG yesterday announced a new set of fitness-oriented earphones, which are designed to offer real-time heart monitoring. The earphones, which connect to a small medallion that is strapped on an arm or waistband, track both metabolic rate and maximum oxygen consumption while allowing users to listen to music. They function through sensors that measure blood flow through the inner ear. In addition, the Heart Rate Monitor Earphones include an accelerometer that measures a wide range of data, including distance, calories burned, steps taken, and more. It also includes hi-fi sound and a built-in microphone for phone calls. It's never been easier —or more tuneful—to track your metabolic rate and cardiovascular fitness (
