April 27

EKO Core Digital Attachment


Eko CORE Digital Attachment


What is the Digital Attachment?

Transform the stethoscope you already own.

The Eko CORE Digital Attachment can be used on most popular analog models, adding amplification, active noise cancellation, and wireless functionality to your stethoscope.

Compatible with analog stethoscopes

  • Fits with 3M™ Littmann®, ADC, WelchAllyn, MDF, and Medline stethoscopes.

Easy installation

  • Add CORE to your stethoscope in four simple steps.

Amplify up to 40x with active noise cancellation

  • At peak frequency, vs. analog mode.

Adult and pediatric

  • Included adapters securely fit infant, pediatric, and adult stethoscopes.

Toggle between digital and analog

  • Quickly toggle between modes so you can listen how you want.

Who Is This For

For EMS & Critical Care

Hear more of what you need and less of what you don’t, especially in challenging environments.

For COVID-19 & Infection Control

Stream sounds directly to your Bluetooth devices for contactless screening.

For Hearing Loss

Eko gives clinicians amplified sound and Bluetooth connectivity with hearing aids and other listening devices.

For Telemedicine

Eko adds amplified auscultation to virtual care, helping you collect more information during telemedicine assessments.

For Students & Education

Eko provides free, dedicated resources to help you master your stethoscope and diagnostic reasoning.

Used By Veterinarians

Eko stethoscopes are used by veterinarians for both large and small animals.

Transform the stethoscope you already own.

Like what you hear so far, click here to visit our products page.

Details And FAQs

Product Description

Enhance your Stethoscope

Transform the stethoscope you already own with dual-mode analog and amplified listening. The Eko CORE Digital Attachment enables 40X amplification with active noise cancellation—helping to reduce background noise even in the most extreme clinical settings. To further improve listening, we’ve taken your feedback, and made the second-generation CORE  25% smaller and 30% lighter for more comfortable use throughout the day.

Extend the capabilities of your stethoscope by pairing CORE with the Eko App on iOS and Android devices. Deepen your analysis with HIPAA compliant storage and sharing and annotate 15, 30, 60 or 120-second recordings in a secure dashboard. Create a library of heart sounds to monitor the progression of a disease or for education, and securely share recordings with colleagues for a second opinion. CORE supports wireless auscultation using the Eko App and headphones, hearing aids, or other BTE speakers to help protect you and your patients  from infectious diseases. 

The Eko CORE Digital Attachment is compatible with the most popular analog models and assembles in minutes to enhance auscultation. 

*40X amplification based on comparison of analog versus electronically assisted amplified listening with maximum volume at the peak frequency (125 Hz). Smart device not included.

Eko CORE Digital Attachment Overview

  • Compatible with most popular analog stethoscope models from 3M Littmann, ADC, WelchAllyn, MDF, and Medline with no cutting necessary.
  • Toggles between analog and amplified listening modes.
  • Up to 40x amplification (at peak frequency, vs. analog mode).
  • Active noise cancellation reduces unwanted background sounds.
  • Provides wireless functionality utilizing Bluetooth technology.
  • Connects to Eko App to visualize and capture sounds for further analysis, or securely share them for a second opinion.

Eko Software Overview

Extend the capabilities of your stethoscope by pairing with the Eko Platform.

  • Supports wireless auscultation using the Eko App and headphones, hearing aids, or other BTE speakers.
  • Visualize heart sound waveforms (phonocardiogram) in real-time.
  • Capture 15, 30, 60, or 120-second recordings to chronicle a patient’s exam history.
  • Share recordings for a second opinion or referral as easily as sending an email.
  • A single dashboard connects you to multidimensional patient care, exam records, reports and colleagues.
  • Add the Pro Plan to help detect early-stage heart murmurs with Eko AI analysis.
  • Add the Pro Telehealth Plan for AI-powered live stream auscultation with integrated videoconferencing.

Features and Spec

Product Information

  • MPN: COR200
  • UPC: 850010298009

Product Features

  • Up to 40x amplification
  • Seven sound amplification levels
  • Analog and amplified listening modes
  • Active noise cancellation
  • Compatible with most popular analog stethoscope models

App Features

  • Visualize PCG waveforms in real-time
  • Record, save, share recordings
  • Data syncs with connected dashboard
  • Downloadable .WAV and .PDF files
  • Provides wireless functionality utilizing Bluetooth 4.2 low-energy
  • Supports wireless auscultation using the Eko App and headphones or hearing aids
  • Pro Plan: AI analysis for heart murmurs
  • Pro Telehealth Plan: AI-powered telehealth platform

Connection & Storage

  • Bluetooth 4.2 low-energy
  • .WAV and .PDF file formats

Dimensions & Weight

  • 2.8 inches (71 mm) H x 0.9 inches (23 mm) W x 0.9 (23 mm) D
  • 1 ounce (28 grams)


  • Easy on/off toggle
  • Micro-USB charging
  • Rechargeable lithium-ion battery with 8-hour life

Construction & Materials

  • Polycarbonate thermoplastic
  • Does not contain natural rubber latex or phthalate plasticizers
  • Clean with isopropyl alcohol wipes

Certifications & Licenses

  • FDA Cleared
  • CE Cleared
  • ISO 13485 Certified
  • MDSAP Certified
  • HIPAA Compliant


What is the eko core digital attachment

The Eko CORE Digital Attachment or Eko CORE is an FDA cleared Bluetooth-enabled device that allows traditional stethoscopes to operate in both analog and amplified modes. Benefits of CORE include analog + amplified modes, up to 40x amplification, active noise cancellation, wireless Bluetooth functionality, and connectivity to the Eko App. 

The CORE Digital Attachment is compatible with most popular stethoscope models from 3M™ Littmann®, ADC, WelchAllyn, MDF, and Medline with no cutting necessary

What's the difference between the 3m Littmann CORE Digital Stethoscope and the EKO COREDigital Attachment

The Littmann® CORE Stethoscope is a 3M™ Littmann® Cardiology IV™ Stethoscope that is pre-assembled with the Eko CORE Digital Attachment. This stethoscope is manufactured and tested by 3M™ Littmann®. The Eko CORE Digital Attachment is manufactured and tested by Eko and works most traditional stethoscopes.

How does the EKO CORE Digital Attachment work for Bluetooth or wireless auscultation

The Eko CORE Digital Attachment provides wireless functionality utilizing Bluetooth technology when using the Eko App. It pairs with Bluetooth-enabled headphones, hearing aids, and speakers. The CORE transmits sounds via Bluetooth with your stethoscope earpieces attached or unattached, making a wireless stethoscope.

Who is the Eko CORE designed for?

Because the Eko CORE Digital Attachment is compatible with most single-tube traditional stethoscopes, it's built for any healthcare provider, including doctors, nurses, EMTs/first-responders, veterinarians, and students.

Is the Eko CORE compatible with pediatric stethoscopes?

The CORE Digital Attachment includes adapters to fit adult, pediatric, and infant (neonatal) stethoscopes and is intended to be used with adult and pediatric patients.

Does EKo help with hearing loss?

There are three primary ways the Eko CORE supports clinicians with hearing loss.

  • Amplified sounds help hear low frequency sounds more clearly.
  • Visualizing waveforms on the Eko App helps confirm the sounds you are hearing.
  • The Eko App pairs with Bluetooth-enabled hearing aids, cochlear implants, and streaming devices.

Are EKO products FDA cleared?

The Eko CORE, Eko DUO, and Eko Analysis Software are FDA cleared and CE marked.

Is the Eko CORE compatible with the Eko App & Platform

Yes, the Eko CORE Digital Attachment pairs with the Eko App. Download the Eko App for free for iOS and Android devices. The essential features of the Eko App are:

  • Wireless Bluetooth functionality
  • Visualize sounds in real-time
  • Capture and share recordings
  • Connected Eko Dashboard

What is Eko AI analysis?

Eko Analysis Software or Eko AI is FDA-cleared AI that includes screening algorithms to assist clinicians in detecting suspected murmurs. 

Eko AI is available with the Eko Pro and Pro Telehealth plans, as well as with Enterprise plans. Get a free 30-day trial of Eko AI when you subscribe through the Eko website.

Can Eko be used for telemedicine, virtual, or home care?

Eko enables providers to perform an accurate stethoscope assessment at the bedside or through a virtual telehealth exam.

The Pro Telehealth plan is built for small clinics and multi-site hospitals to deploy telemedicine without the overhead of large-scale platforms quickly. 

Eko scales to meet the needs of large telehealth deployments with custom integrations and Enterprise support. Schedule a demo to learn more about all telehealth capabilities.

How do the free trials of Eko AI and Telehealth work?

You can get a free 30-day trial of both the Eko Pro and Pro Telehealth plans by checking out on the Eko website. You can purchase a stethoscope and a subscription bundle or checkout with just an AI or telehealth subscription. 

All Eko stethoscopes come with the Essentials features of the Eko App.

Our support team will activate your plan within five business days of checkout.

We offer monthly and yearly plans that can be canceled anytime through your subscription portal or by emailing support@ekohealth.com.

What is the warranty and return policy for the Eko CORE Digital Attachment

The Eko CORE Digital Attachment comes with a 2-year warranty which is warranted against any defects in material and workmanship.

All stethoscopes purchased on the Eko website are backed by a 100% refundable, 30-day workflow trial. We offer free returns within 30 days of receiving your stethoscope.

Returns and Warranties 

Returns Policy

30-Day Money Back Guarantee: If you are unsatisfied with the Product(s) you purchased, you may return the Product within 30 days of receiving it with free return shipping. Read full policy ->

2-Year Warranty

Eko expressly warrants that the Eko Products will materially conform to its published specifications and be reasonably free from defects in materials and workmanship for a period of TWO (2) YEARS for the Eko CORE Digital Attachment, Eko CORE Digital Stethoscope and ONE (1) YEAR for the Eko DUO, commencing on the date of delivery of the Eko Product to you (the “Warranty Period”). This Limited Warranty only applies to products which are purchased from Eko and other authorized retailers, resellers, and distributors and used, stored, and handled in the manner recommended by Eko. We may change the availability of this limited warranty at our discretion, but any changes will not be retroactive. Read full policy ->


Stethoscope Compatibility

  • The 3M Littmann CORE Digital Stethoscope is a fully assembled stethoscope.
  • When paired with the Eko App it provides wireless functionality utilizing Bluetooth 4.2 low-energy to headphones, hearing aids, and other BTE speakers.

Eko App Compatibility

  • Apple iOS - Apple devices with iOS 11 or later.
  • Android - Samsung Galaxy, Google Pixel, and other Android devices 8.0.
  • Windows - Most PCs with Windows 10 and above. Windows does not support wireless functionality.


Tired of being unable to hear breath sounds in a moving rescue with sirens, heaters and exhaust fans all running at the same time, I needed something that could overcome this dilemma. I purchased a competitor’s electronic stethoscope and hated it so much, I sold it within a month of purchase. I then bought the CORE for use with my ADC cardiology scope. I am pleased to say it works beyond my expectations!!! I can hear lung sounds again in spite of all the noise in the Rescue. The app is a great bonus for fine tuning the sound quality. 

Anonymous// Verified Buyer 

I am a retired paramedic and research support specialist who worked at the College of Veterinary Medicine at Cornell University working on equine research projects. I have a horse that has showed signs of asthma in the past. I found that using my stethoscope alone was satisfactory, but since I am getting a little deaf the use of sound amplification seemed like the next thing to try. The digital attachment has helped a lot while listening to the chest and also heart. Unlike the human chest, listening thru horse hair takes a little more patients to keep movement sounds to a minimum so I can hear air movement and any asthmatic related sounds. I have found the attachment to be very useful.

Leo S //Verified Buyer 

I have always had a hard time hearing through the scope. I thought it was my technique. After receiving the attachment and installing it on the scope, I was amazed at the heart sounds I was hearing. Of course, i had to share with my colleges and they were also amazed. Some even admitting they have trouble hearing. It sounds like the department will be getting a scope for the ambulance so all can hear the heart and lung sounds we need to.

Kenneth S // Verified Buyer 

Transform the stethoscope you already own.

Like what you hear so far, click here to visit our products page.


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EKO Core Digital Attachment

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