The stethoscope is 200 years old, so it’s about time to bring it into the 21st century.

The Eko Core, which attaches directly to a regular stethoscope, has just been approved for medical use by the Food and Drug Administration. It works like a regular stethoscope, amplifying sounds in your body. Then, it records those sounds and sends them wirelessly to an iPhone app. From there, doctors can view it at a later date or wait until your next visit to compare your internal noises. It can also be a useful tool for medical students looking to learn more about the sounds of our body.

“This is probably one of the most important innovations in the plain old stethoscope in recent years,” Dr. Charanjit Rihal, chairman of the division of cardiovascular diseases at the Mayo Clinic, told The New York Times.

The Eko Core is on sale now for $199 or $299 with an included stethoscope.