Learn more about the Eko DUO ECG + Digital Stethoscope.

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

Product Description

All-in-one Cardiac Exam System

DUO is a pocket-sized cardiac examination system used to detect early signs of heart disease and facilitate timely care for patients in and out of the clinic. By combining ECG and auscultation, clinicians get more information at a glance without disrupting workflow or running costly tests. FDA-cleared software enables clinicians to capture, transmit, and analyze electromechanical cardiac data in as little as 15 seconds — from the clinic or the comfort of patients’ homes.

View or live stream ECG tracings and sound waveforms directly from your mobile devices with just a few taps. DUO is purpose-built for wireless listening and telemedicine, making it ideal for clinicians who need to be mobile or work in non-clinical environments. Automated disease detection, powered by FDA-cleared, clinically-proven algorithms help clinicians detect early signs of cardiac conditions with comparable accuracy to human experts.

Elevate your physical exam with smart assessment software

  • Listen wirelessly using the Bluetooth-enabled device of your choice.
  • See and hear heart, lung, and bowel sounds and ECG in real-time for more timely, informed decision-making.
  • Save unlimited recordings to chronicle a patient’s history or monitor disease progression on a unified cloud dashboard.
  • Securely share recordings for a second opinion or referral in just a few seconds.
  • Access advanced audio controls to fine-tune your listening experience.
  • Initiate remote auscultation for telemedicine exams over a dedicated, HIPAA-compliant and encrypted live stream with just a few clicks.
  • Catch signs of early-stage conditions with automated disease detection.

*Smart device not included with Eko DUO. Subscription may be required.

DUO Overview

  • Pocket-sized cardiac examination system.
  • Spot check for arrhythmias and murmurs in as little as 15 seconds.
  • Capture professional ECG with no adhesives or wires.
  • Up to 32x amplified heart, lung, and bowel sounds.
  • Wireless listening with the Bluetooth device of your choice.
  • FDA-cleared, HIPAA-compliant, encrypted and SOC 2 compliant.
  • Purpose-built for telehealth.
  • Live stream ECG, sound waveforms, and body sounds from your mobile device in just a few clicks.
  • Automated detection software helps you identify signs of disease faster (subscription may be required).
Features & Specs

Product Information

  • Without Earpieces:
    MPN: DUO200
    UPC: 850010298054
  • With Earpieces
    MPN: DUO201
    UPC: 850010298023

Product Features

  • Single-lead ECG
  • Digital stethoscope
  • Up to 32x amplification
  • Purpose-built for telemedicine
  • One-tap pairing with Eko Software:
    Wireless listening
    Advanced audio controls
    Visualize stethoscope sounds (PCG) & electrocardiogram (ECG)
    Automated disease detection

Connection & Storage

  • Threaded 3.5mm jack for headphones or audio cable
  • Bluetooth LE 4.2
  • .WAV and .PDF file formats


  • Eko App for Apple iOS: iOS 12 and later
  • Eko App for Android: Android OS 8 and later
  • Integrations: Eko Connect SDK/API

Dimensions & Weight

  • 4.7 inches (119mm) L x 1.9 inches (47mm)
    W x 0.6 inches (16mm) D
  • Length with EARPIECE: 31.5 inches (800mm)
  • 3.6 ounces (102 grams)


  • Wireless induction charging
  • Automatic power off after 5 minutes of inactivity
  • Rechargeable lithium-ion battery with 10-hour life
  • Up to 1-year standby time

Construction & Materials

  • 6061 machined aluminum and
  • High-impact ABS thermoplastic
  • Does not contain natural rubber latex or phthalate plasticizers
  • Clean with isopropyl alcohol wipes

Certifications & Licenses

  • FDA Cleared
  • CE Cleared
  • Health Canada Approved
  • ISO 13485 Certified
  • MDSAP Certified
  • HIPAA Compliant
Frequently Asked Questions
What is the Eko DUO ECG + Digital Stethoscope?
What are the differences between the 1st and 2nd generation DUO?
What’s the difference between buying the DUO with or without earpieces?
What is the warranty and return policy for the Eko DUO?
Does the DUO work for Bluetooth or wireless listening?
Can the Eko DUO be used in pediatrics?
Can the DUO in veterinary medicine or on animals?
Is the Eko DUO analog or digital?
Is the Eko DUO compatible with the Eko App & Platform?
What is Eko AI or Cardiac analysis?
Can Eko be used for telemedicine, virtual, or home care?
What is the DUO’s battery life?
What are the electrodes made of?
Can DUO work with a pacemaker or ICD?
Does Eko help with hearing loss?
Are Eko products FDA cleared?
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 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 Eko DUO ECG + Digital Stethoscope a fully assembled stethoscope.
  • When paired with the Eko App it provides wireless functionality utilizing Bluetooth LE 4.2 to headphones, hearing aids, and other BTE speakers.

Eko App Compatibility

Apple iOS - Apple devices with iOS 12 and later.

Android - Samsung Galaxy, Google Pixel, and other Android devices 8 and later.

Integrations - Eko Connect SDK/API

Contact Us
Our team is here to support you.
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+ 1 (844) 356-3384
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