Intel and 50 Cent's accessories firm SMS Audio have released smart headphones, which they claim can measure your heart rate and tell you how far you've run.
The SMS BioSport In-Ear headphone set are battery-free and instead draw energy from your phone through its audio jack, which Intel claims is the first of its kind to do so.
The headphones, which are based on the same prototype technology that Intel showed off at CES in January, integrate with biometric sensors that monitor blood flow through the skin to measure a user's heart rate during exercise.
Users are able to view the data using the popular RunKeeper app, which is monitored using a smartphone's GPS system.
The device is also resistant to perspiration and other forms of moisture, while other feature include a patented ear-hook design in efforts to provide a comfortable fit.
Intel, which acquired fitness-band maker Basis Science in March, said the headphones are part of the chipmaker's push into wearables.
"This is not a hobby for us at Intel," Mike Bell, GM of Intel's New Devices Group, reportedly said in an interview Thursday.
"We really believe that wearable technology is going to be a large segment."