Real reactions from cardiology pros.

Eko brought the CORE 500™ to the 2026 American College of Cardiology conference and asked attendees to listen for the first time. No script, no sales pitch — just honest, first-impression reactions from the people who know heart sounds best.

Try the CORE 500™ risk-free. No two exams are the same, and neither is the way you practice. We want you to have enough time to experience the CORE 500™ across your full spectrum of care, so that's why every order is backed by Eko's risk-free guarantee. If the CORE 500™ doesn't meet your expectations, return it. Simple as that.

Your peers are already convinced.

“I love this stethoscope and have stopped using my regular one. I show patients their heart rhythm on the diaphragm, including PACs and PVCs.”

Tasneem N.

Cardiologist

“I’ve complained for years, no matter the stethoscope, that I couldn’t hear. I no longer have that problem with this stethoscope. Beautiful design, beautiful colors you can mix and match, and it’s very accurate. This is a must-buy and well worth the money.”

Shericka M.

Nurse

“I’ve worked in EMS for over 20 years. Being in a squad, bouncing down the road, trying to do effective patient care, the CORE 500™is a game changer. Being able to amplify cardiac, lung sounds, or even stomach and bowel sounds makes for effective patient care. Best money I’ve ever spent.”

Don W.

EMS Provider

“Amazing sound. Able to hear what I didn’t know I wasn’t hearing. Patients think it’s cool too! A great tool to add to the arsenal to give the best care you can.”

Sharon M.

Physician Associate

“I can hear breath sounds when someone can’t follow directions to take that deep breath. Blood pressure is accurate every time, and the noise cancelling with the amplification makes it so much easier for my 51-year-old concert-going damaged hearing.”

Layla T.

Nurse Practitioner