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). 2Smart device not included


Connects to Eko software (iOS, Android and Windows) to visualize and share heart sound waveforms

Up to 40x amplification (at peak frequency, vs. analog mode)

Active noise cancellation reduces unwanted background sounds

Toggle between analog and amplified listening modes

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 use with adult and pediatric patients

FDA-cleared and HIPAA compliant