Hearing-assist and health monitoring in earbuds

Ever get the feeling your headphones are listening more than you are? You might be onto something. While nearly 60 million wireless units shipped in China in just the first half of this year, the real story is a design revolution. Headphones are no longer just an accessory; they're being engineered to become a seamless, intelligent part of your daily rhythm. On the show: Steve, Fei Fei & Yushun