---
product_id: 26392853
title: "3M Littmann Cardiology IV Diagnostic Stethoscope, 6156, More Than 2X as Loud, Weighs Less, Stainless Steel Chestpiece, 27\" Plum Tube"
brand: "3m littmann"
price: "€ 244.25"
currency: EUR
in_stock: true
reviews_count: 13
category: "3 M Littmann"
url: https://www.desertcart.ie/products/26392853-3m-littmann-cardiology-iv-diagnostic-stethoscope-6156-more-than-2x
store_origin: IE
region: Ireland
---

# 2x louder sound clarity 40% larger chestpiece lighter than competitors 3M Littmann Cardiology IV Diagnostic Stethoscope, 6156, More Than 2X as Loud, Weighs Less, Stainless Steel Chestpiece, 27" Plum Tube

**Brand:** 3m littmann
**Price:** € 244.25
**Availability:** ✅ In Stock

## Summary

> 🩺 Elevate your clinical edge—hear more, diagnose smarter, lead confidently.

## Quick Answers

- **What is this?** 3M Littmann Cardiology IV Diagnostic Stethoscope, 6156, More Than 2X as Loud, Weighs Less, Stainless Steel Chestpiece, 27" Plum Tube by 3m littmann
- **How much does it cost?** € 244.25 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/26392853-3m-littmann-cardiology-iv-diagnostic-stethoscope-6156-more-than-2x)

## Best For

- 3m littmann enthusiasts

## Why This Product

- Trusted 3m littmann brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Precision Listening:** 40% larger chestpiece and 60% deeper bell capture subtle low-frequency heart sounds with unmatched clarity.
- • **Hear What Others Miss:** Over twice as loud as leading stethoscopes for pinpoint auscultation in critical care.
- • **Engineered for Endurance:** Lightweight design ensures all-day comfort without neck strain in fast-paced environments.
- • **Smart Learning Integration:** Boost diagnostic confidence with the Littmann Learning App—master heart and lung sounds anytime, anywhere.
- • **Dual-Sided Tunable Chestpiece:** Switch seamlessly between adult and pediatric patients with non-chill bell for patient comfort.

## Overview

The 3M Littmann Cardiology IV stethoscope delivers superior acoustic performance with over twice the sound amplification of comparable models, a lightweight ergonomic design, and a 40% larger chestpiece for enhanced low-frequency sound detection. Ideal for critical care settings like ED and ICU, it features a dual-sided tunable stainless steel chestpiece and soft-sealing ear tips for comfort. Paired with the Littmann Learning App, it empowers healthcare professionals to sharpen diagnostic skills and confidently detect subtle cardiac and pulmonary anomalies.

## Description

Product Description Built to hear more Sturdy and refined, the Littmann Cardiology IV helps isolate subtle sounds2 so you can hear changes in your patients in the most critical and challenging environments. Designed to help you listen for hard-to-hear sounds, including aortic stenosis, S3 gallop murmurs and faint pulmonary anomalies. Useful in critical care and challenging environments Such as the ED, ICU, Cardiac ICU, step-down unit and other dynamic locations Hear subtle changes in patient status. Diagnose and make decisions with confidence. Put the power of improved listening in your pocket with the Littmann Learning App. This powerful app is designed to help users better recognize benign and pathological heart sounds, murmurs, and lung sounds. It reinforces learning by offering self-directed learning modules directly on your phone. You can download the free Littmann Learning App now from the App Store® or Google Play Store®. *Expanded content is available with a subscription. 2Better audibility of high-frequency sounds (adult side, firm pressure) compared to Cardiology III can help you learn more about your patient’s condition Manufacturer Contact Information 18002283957

Review: Cardiology IV vs Cardiology III vs Master Cardiology - I'll start off by saying that I am careless with Stethoscopes, which is how I ended up writing this review in the first place. Intubation? Lost stethoscope. Central line? Lost stethoscope. Five minutes for lunch? Probably microwaved my stethoscope. The life of an ER resident is crazy, surreal, and amazing. It is also provides the optimal conditions for evaluating stethoscopes. Maybe you're starting medical/nursing school and this is your first big purchase, or maybe you're a veteran at the game and this will be the last of your career. Either way, this is a worthy upgrade to the Cardiology III, and maybe even the Master cardiology. First, i'll start with the similarities. I've owned all three and the acoustics are going to be a dramatic step up from a cheaper brand or model. So now that we're in the 'top tier' with these three, the differences at the top are going to be more subtle. As far as acoustics, Cardiology IV and Master Cardiology are comparable. Anecdotally, I find the Cardiology IV is better at isolating background noise. You will easily pick up any grade 2/6 murmur with either of these models (A guess a better question might be, does it matter?). The cardiology III lags just a bit behind. To a novice med or nursing student, the differences will not be appreciable. But for those who have trained on a lower quality product, you will be pleased with the upgrade. Tubing: The Master Cardiology and Cardiology III both have your standard rubber tubing. The cardiology IV is equipped with a noticeably thicker (and stiffer) synthetic. What this translates to practically is a more comfortable position on your neck (It stays put). I much prefer the new tubing, although time will tell with durability. Size/weight: Master cardiology is the heaviest, with a large diaphragm that will make you feel like a giant on your pediatrics rotation. It also feels to be the most solidly built. Next is the Cardiology IV, which on my kitchen scale weighed 7 grams more than my cardiology III. Practically, it feels to be a similar weight and diaphragm is a similar size. However, the build quality is a huge step up from the Cardiology III. This thing feels solid and is a pleasure to hold. Other features: The tunable diaphragm on the Cardiology IV is top notch. It allows the small diaphragm to be utilized strictly for smaller humans, which is perfect for many fields. Warranty: Who cares? You'll lose all three before you replace one. Colors: I went for standard black on my Cardio III as it was my first stethoscope and i wanted to be professional in my selection. I purchased the Cardiology IV in Hunter Green and could not be happier with that decision. It is elegant and professional, but also different enough that it allows quick identification. I honestly would encourage going against the grain and selecting an actual color. It will bring you joy during those long days and also serves a subtle kick in the butt to the hierarchy and pretentiousness of medicine (At least in my own head). In short, I would highly recommend the Cardiology IV over the others. While the Master Cardiology may have the best acoustics (Debatable), it is clunky and impractical if you have to see kids. It is also noticeably heavier and will likely end up off your neck. There is simply no reason to buy a Cardiology III anymore unless you buy it at steep discount (I'd still probably spend the additional cash on the better model). I coincidentally found my Cardiology III a few days ago and briefly considered returning the Cardio IV, but I just couldn't bring myself to do it (I don't know if i'd recommend as an upgrade unless you are ready for a new stethoscope). At least I'll have a spare :) Left is Cardiology III in black, right is Cardiology IV in Hunter Green, 27 inch. Master Cardiology is probably in a refrigerator somewhere.
Review: Great quality - Perfect

## Features

- Diagnose and make decisions with confidence and hear subtle changes in patient status
- Useful in critical care and challenging environments such as the ED, ICU, Cardiac ICU, step-down unit and other dynamic locations
- More than twice as loud* as the next leading stethoscope. *Based on tests against globally-available comparable stethoscopes in an equivalent class using recorded heart sounds with diaphragm.
- Allows you to more reliably and consistently hear heart sounds at lower frequencies (below 120Hz*) like Korotkoff sounds, Mitral Stenosis and S3 and S4 Gallops when compared to other leading stethoscopes.
- Weighs less** than other stethoscopes. ** Based on published weights of globally-available comparable stethoscopes in an equivalent class.
- Ergonomic and high profile construction; 40% larger chestpiece and 60% deeper bell than the 3M Littmann Classic III Stethoscope
- Tunable, dual-sided stainless steel chestpiece with open or closed bell; Non-chill bell sleeve for greater patient comfort
- Designed for use with adult and pediatric patients
- Soft-sealing ear-tips provide optimal comfort and excellent sound occlusion
- Designed and manufactured in the USA with globally-sourced materials; 7-year warranty

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01CS2OFMG |
| Best Sellers Rank | #4,991 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #18 in Stethoscopes |
| Date First Available | March 13, 2016 |
| Department | Mens |
| Is Discontinued By Manufacturer | No |
| Item Weight | 15.8 ounces |
| Item model number | 6156 |
| Manufacturer | 3M Littmann |
| Product Dimensions | 16 x 7.3 x 5.8 inches |

## Images

![3M Littmann Cardiology IV Diagnostic Stethoscope, 6156, More Than 2X as Loud, Weighs Less, Stainless Steel Chestpiece, 27" Plum Tube - Image 1](https://m.media-amazon.com/images/I/61k1o9pY+YS.jpg)

## Available Options

This product comes in different **Color, Style** options.

## Questions & Answers

**Q: Is there a big difference between the 22" tube & the 27"?**
A: Bought a 22'' several years ago, and I didn't notice a difference acoustically.  What gets annoying sometimes is the 22" falling off my shoulders (I keep it there, rather than in my coat pocket) when not in use.   May not seem like a big deal, but there have been a few times when I'm doing an abdominal or patient in supine position exam, where the 22 inch 'scope can easily  slide off my one shoulder and clunk the patient in the chest.

**Q: Is the cardiology iv worth the extra money in comparison to the iii? Does it have better sound quality than the iii? What are the main differences?**
A: I actually purchased a 3 had it for 3 weeks and it got stolen so I got a 4.  The sound quality on the 4 is amazing.  is it better than the 3, I can't really tell a noticeable difference... it does feel lighter to me than the 3.  I also feel that it is made with different material as it seems to be easier to clean.  Not exactly sure what the main differences are but for an extra 20$ I think it is completely worth it.

**Q: Is this better than the classic iii? my wife will receive her diploma as a m.d. , and this will be my gift to her. she already use a classic iii**
A: The 3M Littmann 6158 Cardiology IV Stethoscope has a seven year warranty.  The acoustics are better than the classis III. On an acoustic scale of 1 to 10 it would be a 9.The Classic III has a five year warranty.  On an acoustic scale of 1 to 10 it would be a 7.Thank you for your interest.CeilBlue Service

**Q: Is the littman cardiology iv better than the cardiology iii?**
A: Yes!!  Way better!!  Had a 3 for years and just got a 4 and absolutely love it!!  The sound quality is amazing!!

## Customer Reviews

### ⭐⭐⭐⭐⭐ Cardiology IV vs Cardiology III vs Master Cardiology
*by D***B on August 22, 2017*

I'll start off by saying that I am careless with Stethoscopes, which is how I ended up writing this review in the first place. Intubation? Lost stethoscope. Central line? Lost stethoscope. Five minutes for lunch? Probably microwaved my stethoscope. The life of an ER resident is crazy, surreal, and amazing. It is also provides the optimal conditions for evaluating stethoscopes. Maybe you're starting medical/nursing school and this is your first big purchase, or maybe you're a veteran at the game and this will be the last of your career. Either way, this is a worthy upgrade to the Cardiology III, and maybe even the Master cardiology. First, i'll start with the similarities. I've owned all three and the acoustics are going to be a dramatic step up from a cheaper brand or model. So now that we're in the 'top tier' with these three, the differences at the top are going to be more subtle. As far as acoustics, Cardiology IV and Master Cardiology are comparable. Anecdotally, I find the Cardiology IV is better at isolating background noise. You will easily pick up any grade 2/6 murmur with either of these models (A guess a better question might be, does it matter?). The cardiology III lags just a bit behind. To a novice med or nursing student, the differences will not be appreciable. But for those who have trained on a lower quality product, you will be pleased with the upgrade. Tubing: The Master Cardiology and Cardiology III both have your standard rubber tubing. The cardiology IV is equipped with a noticeably thicker (and stiffer) synthetic. What this translates to practically is a more comfortable position on your neck (It stays put). I much prefer the new tubing, although time will tell with durability. Size/weight: Master cardiology is the heaviest, with a large diaphragm that will make you feel like a giant on your pediatrics rotation. It also feels to be the most solidly built. Next is the Cardiology IV, which on my kitchen scale weighed 7 grams more than my cardiology III. Practically, it feels to be a similar weight and diaphragm is a similar size. However, the build quality is a huge step up from the Cardiology III. This thing feels solid and is a pleasure to hold. Other features: The tunable diaphragm on the Cardiology IV is top notch. It allows the small diaphragm to be utilized strictly for smaller humans, which is perfect for many fields. Warranty: Who cares? You'll lose all three before you replace one. Colors: I went for standard black on my Cardio III as it was my first stethoscope and i wanted to be professional in my selection. I purchased the Cardiology IV in Hunter Green and could not be happier with that decision. It is elegant and professional, but also different enough that it allows quick identification. I honestly would encourage going against the grain and selecting an actual color. It will bring you joy during those long days and also serves a subtle kick in the butt to the hierarchy and pretentiousness of medicine (At least in my own head). In short, I would highly recommend the Cardiology IV over the others. While the Master Cardiology may have the best acoustics (Debatable), it is clunky and impractical if you have to see kids. It is also noticeably heavier and will likely end up off your neck. There is simply no reason to buy a Cardiology III anymore unless you buy it at steep discount (I'd still probably spend the additional cash on the better model). I coincidentally found my Cardiology III a few days ago and briefly considered returning the Cardio IV, but I just couldn't bring myself to do it (I don't know if i'd recommend as an upgrade unless you are ready for a new stethoscope). At least I'll have a spare :) Left is Cardiology III in black, right is Cardiology IV in Hunter Green, 27 inch. Master Cardiology is probably in a refrigerator somewhere.

### ⭐⭐⭐⭐⭐ Great quality
*by M***A on February 7, 2026*

Perfect

### ⭐⭐⭐⭐⭐ Classic for a reason
*by A***. on December 22, 2025*

Super thick tubing feels great in the hand. I’m just an EMT, and the cardiology iv is more than I need probably, but it sounds incredible. I’ve never had an issue using it.

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-02-22*