3M™ Littmann® CORE
Digital Stethoscope

The Littmann® CORE Stethoscope is a 3M™ Littmann® Cardiology IV™ Stethoscope that is pre-assembled with the Eko CORE Digital Attachment.

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

The features of both devices are:

• 40x amplification and active noise cancellation
• Toggle between analog and amplified modes
• Bluetooth functionality for wireless listing with headphones, hearing aids, and other BTE devices
• Telehealth ready
• One-tap pairing with the Eko App for all software features

When the Eko app is connected and used with a compatible digital stethoscope, the FDA-cleared Eko Analysis Software (EAS) automatically checks for murmurs and/or AFib during Cardiac Exam or Spot Check recordings (Eko DUO is required for Afib detection).

Once the recording is completed, the Eko app will summarize any findings, including potential murmurs, atrial fibrillation, or other abnormalities detected. Keep in mind that the algorithms used to detect murmurs or AFib are not accessed by an Eko device alone. Users must be connected to the EAS using the newest version of the Eko app.

In clinical studies, Eko detected heart murmurs with 88% sensitivity and 88% specificity. When compared to the performance of trained cardiologists, Eko’s detection accuracy was comparable to that of human experts.

Reminder: the outputs of the Eko analysis are not a diagnosis but are intended to aid the clinician in reaching a diagnosis accurately, quickly, and confidently.

The Littmann CORE Stethoscope 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, 75-day trial. We offer free returns within 75 days of receiving your stethoscope.

Read full policy

All Eko stethoscopes are HSA (Health Spending Account), FSA (Flexible Spending Account), or HRA (Health Reimbursement Arrangement) eligible. If your eligible credit card is declined or does not work at ekohealth.com, you can:

• Contact our support team via chat, call + 1 (844) 356-3384, or email support@ekohealth.com for alternate purchase options
• Contact your system administrator for reimbursement information
• Shop Eko products at the fsastore.com or hsastore.com stores

Some clinicians have discretionary funds for CME (Continuing Medical Education) for testing new medical devices. Eko stethoscope and software subscriptions may be eligible for reimbursement.

We recommend printing your order confirmation email to submit as a receipt for reimbursement or emailing support@ekohealth.com for a downloadable PDF invoice.

The 3M™ Littmann® CORE Digital Stethoscope is a high-performance stethoscope designed for any clinician who performs diagnostic auscultation, works in settings with background noise, or performs both in-person and virtual telehealth exams.

Recommended for:

• Physicians
• PAs & NPs
• Nurses
• EMTs & First-responders
• Veterinarians
• Home health providers
• Students & Educators

Yes, CORE supports wireless listening to most Bluetooth headphones, hearing aids, and devices.

Learn how to listen wirelessly using the Eko App for iOS or Android.

There are three ways Eko stethoscopes support clinicians with hearing loss.

1. Sound amplification helps users hear low-frequency sounds more clearly.

2. Visualizing waveforms (phonocardiograms and electrocardiograms) on the Eko App helps confirm the sounds you are hearing and electrical signals you are seeing.

3. Pairing with your stethoscope Bluetooth-enabled hearing aids or wireless streamers.‍

Click HERE for our hearing loss guide and HERE to watch a video explaining multiple ways to configure CORE with different types of hearing aids.

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

Alternatively, the Eko CORE Digital Attachment is compatible with pediatric, infant, and neonatal stethoscopes.

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

View all certifications

Yes, the Littmann CORE Stethoscope pairs with the Eko App. Download the Eko App for free at the iOS and Android app stores.

The primary features of the Eko App are:

• Automated murmur, tachycardia, and bradycardia detection
• Spot check that analyzes in just 15 seconds
• A guided 4-point assessment to maximize accuracy
• Unlimited recordings accessible from any device
• Easy report generation and sharing
• Heart sound visualization (PCG)

Eko stethoscopes and software are purpose-built for telemedicine. Eko supports virtual care or telehealth programs for individual providers, small clinics, and multi-site hospitals. A subscription may be required for telemedicine live streaming.

Click HERE to speak with a telemedicine consultant.

Yes, both the Littmann CORE Digital Stethoscope and Eko CORE Digital Attachment can be used for both small and large animals.

Many veterinarians use Eko for sound amplification, wireless listening, telemedicine, and even recording sounds to increase engagement with pet owners.

Eko automated murmur detection is not intended to be used on animals.

CORE has a rechargeable lithium-ion battery that stays charged with 8 hours of continuous use. The stethoscope still functions as an analog cardiology-grade stethoscope when the power is off. CORE generally lasts 2 weeks between charges with normal use.