My Stethoscope


Doctor wearing a white lab coat and 3M Littmann Cardiology III Stethoscope in hospital corridor.
The personal diagnostic tool you depend on day after day.

Here’s how to get the most out of your 3M™ Littmann® Stethoscope for as long as you own it.

  • The free 3M™ Littmann® Learning Institute App teaches you heart and lung sounds with actual patient cases, and tests your progress.

  • Get great tips on using your Littmann stethoscope: optimizing performance, using a tunable diaphragm, using an electronic stethoscope, cleaning and care.

  • Here’s everything you need to know about keeping your Littmann stethoscope in top working condition, whether it’s under warranty or not.

  • From proper cleaning, to upgrading a diaphragm, to electronic stethoscope battery life, here are answers to many of the questions we’re asked most.

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