3M Littmann Cardiology IV Diagnostic Stethoscope 6239
- 27 inch plum tube, violet stem, black headset
- Dual-sided tunable chestpiece, stainless steel, open or closed bell
- Adult and pediatric patients in one design
- Below 120Hz low-frequency heart sounds, per Littmann
- 40% larger chestpiece, 60% deeper bell than Classic III
- 87 g item weight per the specs
- 7-year warranty, made in USA from global materials
Last refreshed Jun 22, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A strong choice for clinicians in critical care who listen for faint heart sounds in adults and children. Its larger chestpiece and deeper bell add bulk compared with the Classic III.
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ASIN: B0914T1GHDCategory: Stethoscopes
Overview
Littmann built the Cardiology IV around a tunable, dual-sided stainless steel chestpiece with an open or closed bell for adult and pediatric patients. Soft-sealing ear tips block room noise, and a non-chill sleeve on the bell makes first contact more comfortable.
Clinicians get a chestpiece aimed at hard-to-hear sounds such as low-pitched gallops and Korotkoff sounds, backed by a long warranty. Loudness claims come from the maker's own tests, and the bigger chestpiece is bulkier than the Classic III's.
Who it's for
Critical care nurses, physicians and cardiology staff in loud units get a chestpiece tuned for subtle heart and lung changes. Buyers expecting the Littmann Learning App to link to the stethoscope itself should know it is a separate study tool.
Pros and cons
- Tunable dual-sided chestpiece
- Works for adult and pediatric patients
- Non-chill bell sleeve for patient comfort
- Soft-sealing ear tips for occlusion
- Loudness claims rely on maker's own tests
- Larger chestpiece than the Classic III
- Learning app extras need a subscription
- Box lists only the stethoscope itself
Performance notes
Sound depends on chestpiece seal and pressure: the tunable side shifts emphasis as you press firmer, and the open or closed bell brings out lower frequencies. Ear tip seal decides how much room noise reaches you, which matters most in busy units. The deeper bell and larger chestpiece gather more sound at the expense of bulk.
Specifications
| Brand | Littmann |
|---|
Frequently asked questions
How do I adjust the Littmann Cardiology IV chestpiece for different sounds?
The chestpiece is tunable and dual-sided, with an open or closed bell option. Littmann says high-frequency sounds come through better on the adult side with firm pressure. The listing gives no cleaning instructions, so ask 3M Littmann at 1-800-228-3957.
Does the Littmann Learning App connect to the Cardiology IV stethoscope?
No connection is described. The app is a separate study tool for recognizing heart, murmur and lung sounds on your phone, and expanded content needs a subscription.
Which sounds is the Littmann Cardiology IV designed to pick up?
Littmann lists aortic stenosis, S3 gallop murmurs, faint pulmonary anomalies, Korotkoff sounds, mitral stenosis, and S3 and S4 gallops.
What colors does the Littmann 6239 come in?
Model 6239 pairs a plum tube, violet stem and black headset with a high polish rainbow-finish stainless steel chestpiece.