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

Complete Picture From a Single Device 

DUO captures heart sounds and ECG from a compact, handheld device providing a comprehensive view of your patients’ heart health at the point of care. A large audio driver and comfortable ear-tips deliver rich heart sounds, while user-friendly software makes it easy to visualize and share waveforms and tracings for deeper understanding.

DUO can be used as a pocket ECG or as an everyday stethoscope. DUO is ideal for critical care environments where quick and accurate information is vital, during telemedicine exams or with a patient at home for longer-term self-monitoring when prescribed by a physician.

Extend the capabilities of DUO by pairing it 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 and ECGs to monitor the progression of a disease or for education, and securely share recordings with colleagues for a second opinion. DUO 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. 

*Smart device not included with Eko DUO.

Eko DUO ECG + Stethoscope Overview

  • The first FDA-cleared device that combines medical-grade ECG and digital auscultation in a patient-friendly, easy-to-use form factor.
  • Single-lead ECG recording and AI-powered analysis helps you interpret patients’ heart health quickly, accurately, and easily.
  • Digital stethoscope with up to 60x amplification and twelve volume settings.
  • Provides wireless functionality utilizing Bluetooth technology.
  • Connects to Eko App to visualize and store sounds & ECG for further analysis, or securely share them for a second opinion.

Eko Software Overview

Extend the capabilities of DUO by pairing with the Eko Platform.

  • Supports wireless auscultation using the Eko App and headphones, hearing aids, or other BTE speakers.
  • Visualize heart sound waveform (phonocardiogram) & ECG (electrocardiogram) tracings 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 & Specs

Product Information

  • MPN: DUO101
  • UPC: 863609000327

Product Features

  • Single-lead ECG
  • Digital stethoscope
  • Up to 60x amplification
  • 12 sound amplification levels
  • Digital-only sound mode
  • 4 selectable audio filters: Diaphragm, Bell mode, Midrange, Extended

App Features

  • Visualize waveforms (PCG & ECG) 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, hearing aids, or other BTE speakers
  • Pro Plan: AI analysis for heart murmurs & AFib
  • Pro Telehealth Plan: AI-powered telehealth platform

Connection & Storage

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

Dimensions & Weight

  • 4.7 inches (119mm) L x 1.9 inches (47mm) W x 0.6 inches (16mm) H
  • Length with EARPIECE: 31.5 inches (711.2mm)
  • 7.3 ounces (208 grams)


  • Wireless induction charging
  • Automatic power off after 5 minutes of inactivity
  • Rechargeable lithium-ion battery with 9-hour life

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
  • ISO 13485 Certified
  • MDSAP Certified
  • HIPAA Compliant
Frequently Asked Questions
What is the Eko DUO ECG + Digital Stethoscope?
Is the Eko DUO analog or digital?
What are the electrodes made of?
How does the Eko DUO work for Bluetooth or wireless screening?
Can the Eko DUO be used in pediatrics?
Can DUO work with a pacemaker or ICD?
Does Eko help with hearing loss?
Are Eko products FDA cleared?
Is the Eko DUO 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 DUO?
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 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 Eko DUO ECG + Digital Stethoscope 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
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+ 1 (844) 356-3384
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