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3M™ Littmann® CORE Digital Stethoscope

Product Overview

  • A fully-assembled stethoscope that toggles between analog and amplified listening modes.
  • Up to 40x amplification (at peak frequency, vs. analog mode) and active noise cancellation reduces unwanted background sounds.
  • Soft-sealing ear tips provide an excellent acoustic seal and comfortable fit. Includes a tunable, dual-sided stainless steel chestpiece with open or closed bell designed for use with adult and pediatric patients.
  • Connects to Eko App to visualize and share heart sound waveforms and provides wireless functionality utilizing Bluetooth technology.
  • The free Essentials Plan enables clinicians to visualize, record and save sounds for further analysis, or securely share them for a second opinion.

Take Listening to a Whole New Level

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.

The 3M Littmann CORE Stethoscope works with Eko software on iOS and Android devices, giving you a HIPAA compliant means to save and annotate 15, 30, 60 or 120-second recordings in a secure dashboard. Create a library of heart sounds to monitor the progressions of a disease or for education, and securely share recordings with colleagues.

*40X amplification based on comparison of analog versus electronically assisted amplified listening with maximum volume at the peak frequency (125 Hz). Smart device not included.


Features & Specs


Product Information

  • MPN: COR201-3M
  • UPC: 707387792428


3M™ Littmann® CORE Digital Stethoscope

  • Up to 40x amplification
  • Seven sound amplification levels
  • Analog and amplified listening modes
  • Active noise cancellation
  • Snap tight, soft-sealing eartips
  • Adult and pediatric diaphragms


Eko CORE Digital Attachment & App

  • Visualize waveforms 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 or hearing aids


Connection & Storage

  • Bluetooth 4.2 low-energy
  • .WAV and .PDF file formats



  • Fully assembled stethoscope
  • High performance/cardiology stethoscope
  • Includes double sided adult and pediatric diaphragm with bell


Dimensions & Weight

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



  • Easy on/off toggle
  • Micro-USB charging
  • Rechargeable lithium-ion battery with 8-hour life


Construction & Materials

  • Binaural construction: Double Lumen
  • Chestpiece technology: Double sided
  • Diaphragm material: Epoxy/Fiberglass
  • Diaphragm shape: Round
  • Diaphragm type: Tunable, single-piece
  • Eartip type: Soft sealing, extra eartips
  • Headset material: Wide diameter aerospace alloy / Anodized aluminum
  • Color: Black headset and chestpiece finish
  • Does not contain natural rubber latex or phthalate plasticizers
  • Clean with isopropyl alcohol wipes


Certifications & Licenses 

  • FDA Cleared
  • HIPAA Compliant



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