Intel has developed a reference design for smart earbuds that provide biometric and fitness information. The product is aimed at fitness enthusiasts and is unique for being built into an accessory that many people already wear when they exercise -- stereo earbuds.
The Intel smart earbuds provide full stereo audio, and monitor heart rate and pulse, while the applications on the user's phone keep track of run distance and calories burned. The product also includes Intel-developed software that enables users to precision-tune workouts and acts as a coach, automatically selecting music that matches the target heart rate profile.
Intel’s smart earbuds use technology developed in collaboration with Valencell, innovators of PerformTek Precision Biometrics. The sensor technology helps to continuously measure real-time biometric data with a high degree of accuracy and consistency, and uses this data to give people meaningful fitness assessments.
In addition to the convenience of having biometric and fitness tracking built into the earbuds, Intel designed the product in such a way that eliminates the need for a battery or additional power source to charge the product, as it harvests energy directly from the audio microphone jack. 
