Read the information you need about the Eko CORE Digital Attachment.

Get quick access to features & specs, user manuals, and answers to commonly asked questions.

Product Description

Transform your stethoscope into an early detection tool

Get more from the stethoscope you already own with enhanced listening and analysis. A single button press digitally amplifies heart, lung, and other body sounds up to 40x (at peak frequency, vs. analog mode) with simultaneous active noise cancellation, eliminating distractions in noisy environments and making listening easier in challenging cases.

Elevate detection capabilities further. Eko helps you turn auscultation into a comprehensive system for early detection, monitoring, and enhanced telemedicine. Listen the way you want, using your stethoscope or the wireless device of your choice. Deepen your examination with advanced sound controls, real-time visualizations, and automated disease detection* from your smartphone or tablet. Save and share unlimited recordings on a unified dashboard to chronicle a patient’s history or monitor disease progression. Initiate remote auscultation for telemedicine exams over a dedicated HIPAA-compliant and encrypted live stream with just a few clicks.

The Eko CORE Digital Attachment is compatible with most popular analog single-lumen stethoscope models. Please note that it is not compatible with Sprague Rappaport-type, double-lumen tube stethoscopes, or other digital stethoscopes.

*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. Subscription may be required.

Eko CORE Digital Attachment Overview

  • Attaches to most popular single-tube stethoscope models.
  • Up to 40x sound amplification* and active noise cancellation eliminates distracting background noise and make listening easier, especially in challenging cases.
  • Toggle between analog and amplified modes with a single button-press to listen the way you want.
  • Pairs easily with your mobile device for wireless listening and telehealth exams.
  • FDA-cleared, HIPAA-compliant, encrypted and SOC 2 compliant.
  • Automated detection software helps you identify signs of disease faster (subscription may be required).
Features & Specs

Product Information

  • MPN: COR200
  • UPC: 850010298009

Product Features

  • Up to 40x amplification
  • Analog and amplified listening modes
  • Active noise cancellation
  • Compatible with most popular analog stethoscope models
  • Telehealth ready
  • FDA-cleared and HIPAA-compliant
  • One-tap pairing with Eko Software:
    Wireless listening
    Advanced audio controls
    Visualize stethoscope sounds (PCG)
    Automated disease detection

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
Frequently Asked Questions
What is the Eko CORE Digital Attachment?
What’s the difference between the 3M™ Littmann® CORE Digital Stethoscope and the Eko CORE Digital Attachment?
How does the Eko CORE Digital Attachment work for Bluetooth or wireless auscultation?
Who is the Eko CORE designed for?
Is the Eko CORE compatible with pediatric stethoscopes?
Does Eko help with hearing loss?
Are Eko products FDA cleared?
Is the Eko CORE compatible with the Eko App & Platform?
What is Eko AI analysis?
Can Eko be used for telemedicine, virtual, or home care?
How do the free trials of Eko AI and Telehealth work?
What is the warranty and return policy for the Eko CORE Digital Attachment?
Resources & User Manuals

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 the Eko DUO ECG + Digital Stethoscope, 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. 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.
Contact Us
Our team is here to support you.
By Phone
Call or text us weekdays between 8-5 pm PST. Please do not include any Protected Health Information (PHI).
+ 1 (844) 356-3384
Support & Resources
Get user manuals and answers to commonly asked questions in the Support Portal.
Support Portal →
Chat Live
Chat with a specialist about which Eko product is best for you weekdays 8-5 pm PST. Please do not include any Protected Health Information (PHI).
Eko Demo
Schedule time with an expert to learn how Eko supports practices of all sizes in an interactive demo.
Schedule Demo →