---
product_id: 591193694
title: "Cardiology IV Diagnostic Stethoscope, 6187C, More Than 2X as Loud, Weighs Less, 27\" Midnight Blue Satin-Finish Tube for Added Comfort, Flexibility and Cleanability"
brand: "3m littmann"
price: "$705"
currency: NZD
in_stock: true
reviews_count: 13
category: "3 M Littmann"
url: https://www.desertcart.nz/products/591193694-cardiology-iv-diagnostic-stethoscope-6187c-more-than-2x-as-loud
store_origin: NZ
region: New Zealand
---

# Flexible satin-finish tubing 2X louder acoustics Lightweight design Cardiology IV Diagnostic Stethoscope, 6187C, More Than 2X as Loud, Weighs Less, 27" Midnight Blue Satin-Finish Tube for Added Comfort, Flexibility and Cleanability

**Brand:** 3m littmann
**Price:** $705
**Availability:** ✅ In Stock

## Summary

> 🎧 Elevate your clinical edge with sound that speaks volumes

## Quick Answers

- **What is this?** Cardiology IV Diagnostic Stethoscope, 6187C, More Than 2X as Loud, Weighs Less, 27" Midnight Blue Satin-Finish Tube for Added Comfort, Flexibility and Cleanability by 3m littmann
- **How much does it cost?** $705 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/591193694-cardiology-iv-diagnostic-stethoscope-6187c-more-than-2x-as-loud)

## 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

- • **Dual-Sided Tunable Chestpiece:** Switch seamlessly between adult and pediatric patients with a 40% larger chestpiece and non-chill bell sleeve.
- • **Made in the USA, Built to Last:** Durable, latex-free, phthalate-free materials ensure longevity and patient safety in fast-paced settings.
- • **Featherlight Comfort for Long Shifts:** Weighs less than comparable models, reducing neck strain during marathon clinical hours.
- • **Hear Twice as Much, Twice as Clearly:** More than 2X louder than leading stethoscopes for pinpoint diagnostics in any environment.
- • **Silky Smooth, Scuff-Resistant Tubing:** Satin finish tubing resists stains, sticks less to hair/clothing, and folds easily for on-the-go pros.

## Overview

The 3M Littmann Cardiology IV Diagnostic Stethoscope delivers over twice the acoustic amplification of comparable models, enabling healthcare professionals to detect subtle heart and lung sounds with unmatched clarity. Featuring a lightweight, ergonomically designed frame and flexible satin-finish tubing, it offers superior comfort and durability for long shifts. Its dual-sided tunable chestpiece accommodates both adult and pediatric patients, while the scuff-resistant coating ensures a professional look that lasts. Made in the USA without latex or phthalates, this stethoscope is the definitive tool for confident, precise diagnostics in critical care environments.

## Description

Product Description Built to hear moreSturdy 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.Satin Finish TubingLittmann stethoscope’s Satin Finish Tubing formula means that the same performance you’ve come to expect from the 3M™ Littmann® Cardiology IV™ is now available with a more comfortable, flexible feel that is not likely to stick to hair or clothing.Littmann stethoscopes’ satin finish also offers a more flexible feel for easier folding and stowing of your stethoscope, so you can keep it with you between patients, and its specially-formulated coating is easy to clean, with debris- and scratch-resistance to help preserve the look and life of your stethoscope. When compared to uncoated tubing, Satin Finish Tubing is:Softer with a silkier feel,More stain-resistant,Easier to clean, andFeaturing a pliability that makes it easier to put into a lab coat.Useful in critical care and challenging environmentsSuch as the ED, ICU, Cardiac ICU, step-down unit and other dynamic locationsHear 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 1-800-228-3957

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: Excellent stethoscope!! - This stethoscope has exceeded my expectations. The sound quality is incredibly clear—heart, lung, and bowel sounds are easy to detect, even in busy or noisy environments. It feels sturdy and well-made, yet lightweight enough for long shifts. The earpieces are comfortable and create a great seal, and the tubing is flexible without feeling flimsy. Overall, it’s a reliable, high-quality tool that makes assessments smoother and more accurate. I’m very impressed and highly recommend it to students and professionals alike!

## Features

- Diagnose and make decisions with confidence and detect normal and abnormal sounds and rhythms
- Ergonomic and high profile construction; 40% larger chestpiece and 60% deeper bell than the 3M Littmann Classic III Stethoscope and designed for use with adult and pediatric patients
- 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.
- Satin finish tubing helps keep hair and clothing from sticking
- Specially formulated coating is scuff-resistant and easy to clean
- More flexible feel and easily folds to stow in pockets
- Tunable, dual-sided stainless steel chestpiece with open or closed bell; Non-chill bell sleeve for greater patient comfort; Soft-sealing ear-tips provide optimal comfort and excellent sound occlusion
- Made in the USA without natural rubber latex; 3M Littmann tubing does not contain phthalate plasticizers, provides longer stethoscope life due to improved resistance to skin oils and alcohol and is less likely to pick up stains.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CP8Z2157 |
| Best Sellers Rank | #7,836 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #24 in Stethoscopes |
| Date First Available | December 1, 2023 |
| Department | Healthcare Professionals |
| Item Weight | 0.021 ounces |
| Item model number | 6187C |
| Manufacturer | 3M |
| Product Dimensions | 10.63 x 10.63 x 0.04 inches |

## Product Details

- **Brand:** 3M Littmann
- **Color:** Midnight Blue Tube
- **Exterior Finish:** Satin Finish
- **Item Weight:** 0.6 Grams
- **Material:** Stainless Steel

## Images

![Cardiology IV Diagnostic Stethoscope, 6187C, More Than 2X as Loud, Weighs Less, 27" Midnight Blue Satin-Finish Tube for Added Comfort, Flexibility and Cleanability - Image 1](https://m.media-amazon.com/images/I/71qU8YX7tKL.jpg)

## Available Options

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

## 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.

### ⭐⭐⭐⭐⭐ Excellent stethoscope!!
*by J***E on November 22, 2025*

This stethoscope has exceeded my expectations. The sound quality is incredibly clear—heart, lung, and bowel sounds are easy to detect, even in busy or noisy environments. It feels sturdy and well-made, yet lightweight enough for long shifts. The earpieces are comfortable and create a great seal, and the tubing is flexible without feeling flimsy. Overall, it’s a reliable, high-quality tool that makes assessments smoother and more accurate. I’m very impressed and highly recommend it to students and professionals alike!

### ⭐⭐⭐⭐⭐ 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.

## Frequently Bought Together

- 3M Littmann Cardiology IV Diagnostic Stethoscope, 6187C, More Than 2X as Loud, Weighs Less
- LTGEM Stethoscope Case for 3M Littmann Cardiology III,II,IV,3M Littmann Master Cardiology/MDF MDOne Stainless Steel Stethoscope Nurse Accessories and Medical Equipment (Black Outside+Black Inside)
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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-02-12*