Skip to content

3M Littmann CORE
Digital Stethoscope

The 3M Littmann CORE Digital Stethoscope features the outstanding acoustics, comfort and quality of a Littmann cardiology-grade stethoscope enhanced by powerful digital technology.

When paired with the Eko App, the most advanced Littmann Stethoscope becomes even smarter — helping you check for murmurs automatically in seconds.


The most advanced Littmann stethoscope yet. The Littmann CORE Stethoscope combines the outstanding acoustics, comfort, and quality of a Littmann cardiology-grade stethoscope with advanced Eko digital innovations that help clinicians check for heart murmurs in seconds.


  • Best in class 3M Littmann stethoscope technology meets advanced Eko digital innovations.
  • Automated detection software helps you check for murmurs in seconds.
  • Up to 40x amplification (at peak frequency, vs. analog mode).
  • Active noise cancellation reduces unwanted background sounds and makes listening easier, especially in challenging cases.
  • Toggle between analog and amplified modes to listen the way you want.
  • Wireless listening with the Bluetooth device of your choice.
  • Soft-sealing ear tips provide an excellent acoustic seal and comfortable fit.
  • Tunable, dual-sided stainless steel chestpiece with open or closed bell designed for adult and pediatric patients.
  • Telehealth ready. Live stream sound waveforms and body sounds in just a few clicks (subscription may be required).
  • FDA-cleared, HIPAA-compliant, encrypted and SOC 2 compliant software.

Listen like never before

The FDA-cleared 3M Littmann CORE Stethoscope toggles between analog and amplified listening modes so you can listen how you want to during assessments. Tunable diaphragm technology—a 3M invention—lets you hear different frequency sounds by simply adjusting the pressure on the chestpiece. Hold the chestpiece with light pressure on the patient to hear low frequency sounds; press a little more to hear higher frequency sounds. Soft-sealing ear tips conform to individual ears for optimal comfort and excellent sound occlusion.

Elevate your physical exam with smart detection software

  • Identify heart murmurs easier with Eko’s automated detection software.
  • Listen wirelessly using the Bluetooth-enabled device of your choice.
  • See and hear heart, lung, and bowel sounds 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.

Hear and see for yourself. Experience automated murmur detection using heart sounds captured with the 3M™ Littmann® CORE Digital Stethoscope.

Product Features:

  • Up to 40x amplification
  • Active noise cancellation
  • Analog and amplified listening modes
  • Snap tight, soft-sealing ear tips
  • Adult and pediatric diaphragms
  • Telehealth ready
  • FDA-cleared and HIPAA-compliant
  • One-tap pairing with Eko App
  • Wireless listening
  • Advanced audio controls
  • Automated disease detection
  • Visualize stethoscope sounds (PCG)

Certifications & Licenses

  • FDA Cleared
  • CE Marked
  • ISO 13485 Certified
  • MDSAP Certified
  • HIPAA Compliant 

Dimensions & Weight

  • 27 inches (69 cm) L
  • 8.1 ounces (232 grams)
  • Chest piece size: 1.3 inches (3.3 cm), 1.7 inches (4.3 cm)
  • Chest piece weight: 3.1 ounces (87 grams)
  • Diaphragm diameter: 1.7 inches (4.3cm), 1.3 inches (3.3 cm)