3M™ Littmann® CORE Digital Stethoscope

In stock with free shipping. MPN: #COR201-3M

$ 349.00


$ 349.00

Eko Platform - Plan Options

Essentials Plan

Record, Save, and Share High Quality Recordings

Pro Plan, 1st Month Free

30-day trial of AI analysis algorithms for heart murmurs

Pro Telehealth, 1st Month Free

30-day trial of AI-powered cardiopulmonary telehealth platform


FDA Cleared

HIPAA Compliant

FSA/HSA Eligible

Free Shipping & Returns

2-Year Warranty

Money Back Guarantee

Product Overview

  • A fully-assembled stethoscope that toggles between analog and amplified listening modes.
  • Up to 40x amplification (at peak frequency, vs. analog mode) and active noise cancellation reduces unwanted background sounds.
  • Soft-sealing ear tips provide an excellent acoustic seal and comfortable fit. Includes a tunable, dual-sided stainless steel chestpiece with open or closed bell designed for use with adult and pediatric patients.
  • Connects to Eko App to visualize and share heart sound waveforms and provides wireless functionality utilizing Bluetooth technology.
  • The free Essentials Plan enables clinicians to visualize, record and save sounds for further analysis, or securely share them for a second opinion.
  • Add the Pro Plan to enable Eko AI analysis for heart murmurs or Pro Telehealth Plan for AI-powered telehealth visits.

Take Listening to a Whole New Level

The FDA-cleared 3M Littmann CORE Stethoscope toggles between analog and amplified listening modes so you can listen how you want to during assessments. Tunable diaphragm technology—a 3M invention—lets you hear different frequency sounds by simply adjusting the pressure on the chestpiece. Hold the chestpiece with light pressure on the patient to hear low frequency sounds; press a little more to hear higher frequency sounds. Soft-sealing ear tips conform to individual ears for optimal comfort and excellent sound occlusion.

The 3M Littmann CORE Stethoscope works with Eko software on iOS and Android devices, giving you a HIPAA compliant means to save and annotate 15, 30, 60 or 120-second recordings in a secure dashboard. Create a library of heart sounds to monitor the progressions of a disease or for education, and securely share recordings with colleagues.

*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.

Pair with Eko Software

Unlock the full potential of the Littmann CORE Digital Stethoscope by pairing with the Eko Platform.

  • 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 algorithms.
  • Add the Pro Telehealth Plan for AI-powered live stream auscultation with integrated videoconferencing.

Features & Specs

Product Information

  • MPN: COR201-3M
  • UPC: 707387792428


3M™ Littmann® CORE Digital Stethoscope

  • Up to 40x amplification
  • Seven sound amplification levels
  • Analog and amplified listening modes
  • Active noise cancellation
  • Snap tight, soft-sealing eartips
  • Adult and pediatric diaphragms


Eko CORE Digital Attachment & App

  • Visualize 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


Connection & Storage

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



  • Fully assembled stethoscope
  • High performance/cardiology stethoscope
  • Includes double sided adult and pediatric diaphragm with bell


Dimensions & Weight

  • 27 inches (69 cm) L
  • 8.1 ounces (232 grams)
  • Chestpiece size: 1.3 inches (3.3 cm), 1.7 inches (4.3 cm)
  • Chestpiece weight: 3.1 ounces (87 grams)
  • Diaphragm diameter: 1.7 inches (4.3cm), 1.3 inches (3.3 cm)



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


Construction & Materials

  • Binaural construction: Double Lumen
  • Chestpiece technology: Double sided
  • Diaphragm material: Epoxy/Fiberglass
  • Diaphragm shape: Round
  • Diaphragm type: Tunable, single-piece
  • Eartip type: Soft sealing, extra eartips
  • Headset material: Wide diameter aerospace alloy / Anodized aluminum
  • Color: Black headset and chestpiece finish
  • Does not contain natural rubber latex or phthalate plasticizers
  • Clean with isopropyl alcohol wipes


Certifications & Licenses 

  • FDA Cleared
  • HIPAA Compliant



Commonly Asked Questions


What is the 3M™ Littmann® CORE Digital Stethoscope?


Eko and 3M Littmann are joining forces to build upon the rich diagnostic legacy of the Littmann stethoscope by creating a new stethoscope that helps clinicians to get a clearer picture of their patients’ health. The Littmann CORE Stethoscope is a fully assembled stethoscope that connects to the Eko App and software.



What’s the difference between the Eko CORE Digital Attachment and the 3M™ Littmann® CORE Digital Stethoscope?


The Littmann® CORE Stethoscope is a fully cardiology-grade stethoscope that is assembled with the Eko CORE Digital Attachment. It is assembled with a 3M Littmann chestpiece, tubing, and eartips.


The Eko CORE Digital Attachment is also available by itself and is compatible with most popular stethoscope models from 3M Littmann, ADC, WelchAllyn, MDF, and Medline with no cutting necessary.



How does the 3M™ Littmann® CORE Digital Stethoscope work for Bluetooth or Wireless Auscultation?


The Littmann® CORE Stethoscope provides wireless functionality utilizing Bluetooth technology. The CORE Digital Attachment supports wireless auscultation using the Eko App and headphones, Bluetooth-enabled hearing aids, or other devices. We do not recommend cutting or ripping the tubing on the 3M Littmann CORE Digital Stethoscope.



Does the 3M™ Littmann® CORE Digital Stethoscope come in pediatric sizes?


The Littmann® CORE Digital Stethoscope has both adult and pediatric diaphragms and is intended for use on both pediatric and adult patients.


Are Eko and 3M Littmann® stethoscopes FDA cleared?


The Eko CORE, Eko DUO and Analysis Software are FDA cleared and CE marked. The 3M™ Littmann® CORE Digital Stethoscope is FDA cleared.



Is the 3M™ Littmann® CORE Digital Stethoscope compatible with the Eko App & Platform?


Yes the 3M™ Littmann® CORE Digital Stethoscope connects to Eko software. The free features of the App enable clinicians to:

  • Visualize heart sound waveforms (phonocardiogram) in real-time
  • Capture, save, and share 15, 30, 60, or 120-second recordings
  • Auscultate wirelessly utilizing Bluetooth technology
  • Connect to the Eko Dashboard to view patient records and download reports



What is Eko AI analysis and the Pro Plan?


The Pro plan enables AI analysis of heart sounds to your stethoscope, and helps identify heart murmurs and early signs of structural heart disease. We recommend the Pro Plan for individuals and small clinics that want to digitize their practice and identify early signs of heart disease.



What is Eko Telemedicine and the Pro Telehealth Plan?


The Pro Telehealth plan combines high-fidelity stethoscope auscultation sounds, videoconferencing, and AI analysis into a single platform. Pro Telehealth is built for small clinics and multi-site hospitals to quickly deploy without the overhead of large scale telemedicine platforms.



How do Eko Pro and Pro Telehealth plans work and is there a free trial?


Both the Pro and Pro Telehealth plans are available for subscription on our website. You can checkout with just a subscription or purchase a stethoscope & subscription bundle. All stethoscopes come with the free Essentials plan.


All paid plans come with a risk free 30-day trial. To claim your trial, checkout with your desired plan and then our support team will activate your account within five business days. There are both monthly and yearly plans that can be canceled at any time.



What is the warranty and return policy for the 3M™ Littmann® CORE Digital Stethoscope?


The Littmann® CORE Stethoscope comes with a 2-year warranty which is warranted against any defects in material and workmanship and Eko will honor a 30-day return policy for a full-refund.



Eko App Compatibility


Apple iOS

Apple devices with iOS 11 or later.


For wireless listening - Compatible with AirPods for wireless listening on the above devices. Wireless listening with other Bluetooth headphones has not been validated.



Most PCs with Windows 10 and above.


Windows does not support wireless listening.



Samsung Galaxy, Google Pixel, and other Android devices 8.0 and up (see list below).


For wireless listening - Compatible with AirPods for wireless listening on the devices noted with an *. Wireless listening with other Bluetooth headphones has not been validated.


Compatible Android devices:

Samsung Galaxy Note 10+

Samsung Galaxy Note 9

Samsung Galaxy Note 8*

Samsung Galaxy S10

Samsung Galaxy S10+*

Samsung Galaxy S9

Samsung Galaxy S9+

Samsung Galaxy S8*

Samsung Galaxy S8+

Samsung Galaxy S7 Edge

Google Pixel 3*

Google Pixel 3a

Google Pixel 3 XL

Google Pixel 4*

Google Pixel 4 XL

Google Pixel 2

Google Pixel 2 XL

Motorola Moto X4

LG Nexus 5X*


Learn more about system requirements & compatibility



Resources & User Manuals

Stethoscope Brochure

3M Littmann CORE Digital Stethoscope



Published Research


Read published clinical research featuring Eko technology in practice.



Case Studies


Discover examples of how Eko is helping health systems address real-world challenges.





3M Littmann CORE Digital Stethoscope

Using Eko for Telemedicine

How to Auscultate Wirelessly with Eko

Demonstrating Eko AI for Murmur & AFib Screening





Eko CORE User Manual

Eko AI Analysis Software User Manual

Visit our support portal for all technical documentation of the CORE, Eko App, and Dashboard.



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.



2-Year Warranty

The Littmann® CORE Digital Stethoscope is backed by a 2-year warranty period. The day you bought your Littmann stethoscope establishes its warranty start date. This date can be verified on your original purchase receipt. If you do not have your receipt, Littmann will use the date it was manufactured as the warranty start date.


If a material or manufacturing defect occurs during the warranty period, Littmann will repair your Littmann stethoscope free of charge, upon return of the instrument to 3M, except in cases of obvious abuse or accidental damage. To file a warranty request for the Littmann® CORE Digital Stethoscope, visit the 3M™ Littmann® Stethoscope Repair Services site here.  

Has the warranty expired? No worries. Littmann offers affordable Littmann stethoscope repairs that include replacing the tubing, ear tubes, diaphragm, rim, non-chill sleeves and eartips. Click here to find out where to buy replacement parts.



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