Duo Bone Conduction Health-Monitoring Earphones know how hydrated you are

The Duo Bone Conduction Health-Monitoring Earphones take bone conduction technology to the next level. Rather than simply acting as headphones, these bone conduction earphones have a Na+ ion sensor that monitors your hydration. Additionally, these health monitoring headphones can even keep tabs on your metabolism. So if you enjoy sports and activity, the Duo headphones can help you keep tabs on how you’re doing. Though they’re just a concept design for now, these earphones also have add-ons....