3M uses cookies on this site. This site and 3M selected service providers place cookies, containing text files, on your computer to recognize your computer and:

  • personalize your experience on 3M websites
  • show you ads tailored to your interests
  • collect anonymous statistical information to enhance site functionality and performance.

Learn the benefits of accepting these cookies

You can change your cookie settings at any time by clicking on the Cookie Preferences link at the bottom of the page.

Some opt-outs may fail due to your browser's cookie settings. If you would like to set opt-out preferences using this tool, you must allow third party cookies in your browser settings.

By clicking Accept and Proceed, you confirm your understanding and agreement for cookie settings as indicated on the left.

Accept and Proceed

Skip to Primary Navigation Skip to Site Navigation Skip to Main Content All 3M.com Site Map


"...it really is possible to listen and hear what the teacher is hearing at almost exactly the same moment"

Dr. Will Carroll Consultant Paediatrician

Transforming Auscultation Education

Share sounds with up to four students. Utilising the 3M™ Littmann® Model 3200 Electronic Stethoscope, the Littmann Listen-In auscultation teaching system delivers a simultaneous sound experience for multiple clinicians.

The Littmann Listen-In system enables you to link five Littmann model 3200 stethoscopes. Digital capture ensures perfect sound reproduction and with a Bluetooth® connection the set-up is quick and easy.

Transmit, Teach, Listen, Learn

  • Reduce the length and increase the efficiency of teaching sessions and ward rounds
  • Reduce stress on patients from fewer interventions by students
  • Switch the Presenting stethoscope to Listening stethoscope, enabling you to listen to the student
  • Connect to all five Littmann model 3200 electronic stethoscopes within seconds
  • Control the filter (Bell, Diaphragm, and Extended Range) on all stethoscopes whilst each stethoscope has independent control of the volume

    Works ‘out of the box’ with a package containing five
    pre-paired Littmann model 3200 electronic stethoscopes and an Android® device with the Listen-In software already installed.

    Utilises a standard Littmann 3200 electronic stethoscope which can be used for your regular patient assessments, and with an on-board recording facility and analysis software, the applications are extensive.

    Share the exceptional sound quality of the Littmann model 3200 electronic stethoscope for an efficient and patient friendly auscultation experience.

    Request a FREE product demonstration or more information about the Littmann Listen-In System

    Download the PDF brochure of the Littmann® Listen-In System [777KB]

    Download the PDF User Report of the Littmann® Listen-In System [114KB]



Find the right Littmann® Stethoscope

Compare stethoscope features and styles.

Browse Stethoscopes Cleaning and Care

Classic III Stethoscope

Buy Smart

To ensure that your 3M™ Littmann Stethoscope is genuine, purchase it online or in person through authorised distributors only. Beware of counterfeit 3M™ Littmann® Stethoscopes sold by unauthorised outlets. Look for the hologram style Littmann logo on the underside of the box.

Where to Buy Where to Buy


General Stethoscopes General Stethoscopes

Cleaning & Care Cleaning & Care

Product Information Product Information