3M™ Littmann® CORE Digital Stethoscope

The 3M™ Littmann® CORE Digital Stethoscope is the highest performance stethoscope in the Littmann portfolio. It comes pre-assembled with a 3M™ Littmann® Cardiology IV™ Stethoscope and an Eko CORE Digital Attachment and features:

• Advanced disease detection*
• Up to 40x amplification
• Active noise cancellation
• One-tap App pairing
• Wireless listening
• Analog and amplified modes
• Heart sound visualization (PCG)
• Telehealth capabilities
• Adult and pediatric tunable diaphragms
• Unlimited recordings*

*Select features require an Eko+ membership.

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.

When the Eko App is connected and used with a compatible digital stethoscope, Eko’s FDA-cleared software automatically checks for signs of heart disease.

The Eko App will summarize any findings with an intuitive 15-second recording. These findings aren’t a diagnosis but are intended to aid the clinician in reaching a diagnosis accurately, quickly, and confidently. Access to Eko AI requires an Eko+ membership.

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 disease detection supported by Eko AI*
• 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)

*Select features require an Eko+ membership.

Eko+ is a paid membership that unlocks unlimited access to the Eko App’s full feature set.

With an Eko+ membership, you can access the Eko App’s full suite of features including AI-powered AFib detection (CORE 500™ only) and murmur detection, and create, save, and share heart sound recordings and PDF reports.

Eko+ is offered as a monthly or annual subscription and can be purchased on ekohealth.com or through the Apple App Store or Google Play Store.

The Littmann® CORE Stethoscope comes with a 2-year warranty which is warranted against any defects in material and workmanship.

We guarantee you'll detect heart and lung conditions more confidently using Eko. If not, return it within 75 days for a full refund — just contact us and we'll take care of you.

Read our full return policy.

Stethoscopes from Eko may be eligible for HSA, FSA, or CME (continuing medical education) purchase and/or reimbursement.

Use your benefits card for qualified purchases and save your order confirmation email as a receipt. You can also log in to your Eko profile to print your receipt.

If your card is declined or has an error, you can pay with an alternate credit card and submit your receipt for reimbursement with your administrator.

If you have any issues, we recommend contacting your account administrator first. If you need to speak with us, you can contact our support team via chat or call + 1 (844) 356-3384.

Eko cannot provide tax, compliance, or legal advice regarding HSA/FSA reimbursement.

The 3M™ Littmann® CORE Digital Stethoscope is a high-performance stethoscope designed for any clinician who performs diagnostic assessments, works in settings with background noise, or performs both in-person and virtual telehealth exams. It’s also ideal in school settings for educators and students to teach and learn body sounds. Recommended for:

• Physicians
• PAs and NPs
• Nurses
• EMTs and first responders
• Veterinarians
• Home health providers

Yes, we encourage students to use Eko stethoscope technology to learn auscultation skills and how to identify heart, lung, and body sounds.

Yes, this stethoscope supports wireless listening for most Bluetooth headphones, hearing aids, and devices.

Eko digital stethoscope technology supports clinicians with hearing loss in several ways:

- Sound amplification helps users hear low-frequency sounds more clearly
- Waveform visualization (phonocardiograms and electrocardiograms) on the Eko App helps confirm the sounds heard and electrical signals seen
- Bluetooth compatibility allows stethoscopes to be paired with hearing aids or wireless streamers

View our Stethoscope Guide for Healthcare Workers with Hearing Loss and watch a video explaining how to configure the Littmann CORE Digital Stethoscope 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 CORE 500™, Eko DUO, and Eko Analysis Software are FDA cleared and CE marked.

View all certifications.

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.

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. Some features may require a paid Eko App membership.

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

Yes, both the Eko CORE 500™ Digital Stethoscope and 3M™ Littmann™ CORE Digital Stethoscope are available on Amazon; however our free case promotion, engraving service, and 75-day return policy are exclusive to purchases made on ekohealth.com.

Visit our Amazon Store to browse all products sold on Amazon.