Littmann Cardiology IV Diagnostic Stethoscope – Review

This is our review of the Littmann Cardiology IV.

I’m an animal lover, lifelong dog owner, and writer who would like to help you evaluate whether you should include the Littmann Cardiology IV in your medical kit. 

In the following few sections, I will provide you with an in-depth review and examination of this stethoscope, its features, and its significant differences from earlier versions of the Littmann stethoscope, such as the 3M Littmann cardiology iv stethoscope.

General Product Description 

The Littmann Cardiology IV holds similar features that its predecessor, the Littmann Cardiology III, has. This new Littmann Cardiology stethoscope is a new addition to the existing stethoscope types of the group. 

In general, Littmann Cardiology IV consists of improvements that users of the Littmann Cardiology II have wished for, such as having a clearer and outstanding acoustic performance and advanced tubing.

Medical professionals specializing in cardiology and those from other medical fields will surely benefit from the Littmann Cardiology IV’s advanced features. This stethoscope also comes with a seven-year warranty that users can avail themselves, in case they want spare part replacement or repair.

Would you like to know more about the Littmann Cardiology IV? Let’s get started!

Reviewing the Littmann Cardiology IV Diagnostic Stethoscope


If you like the Littmann Cardiology III, you will love the 3M Littmann Cardiology IV even more. This product does not aim to alter what its predecessor is known for. Instead, it tried to improve some features giving more satisfaction to its user.  

The Benefits of the Stethoscope 

The following are improved features and benefits that the Littmann Cardiology IV can offer. 

The 3M Littmann Cardiology IV has improved acoustic performance owing to its dual-sided chalice-shaped chest piece. The improvement of the material on its chest-piece also results in better high-frequency audibility of the stethoscope.

The new Littmann Cardiology IV has also become more versatile, allowing its users to maneuver it easily. For example, if you want to convert the pediatric side of the chest piece to a traditional open bell, you can easily remove the tunable diaphragm then replace it with a non-chill bell sleeve.

In terms of versatility, the usage of 3M Littmann Cardiology IV is not limited to one medical field. Students from medical school and veterinarians can also use it in their line of work for the same reasons. 

The 3M Littmann Cardiology IV stethoscope will help them arrive at more accurate results while giving them the ease and versatility of using it.

What We Like About It

The 3M Littmann Cardiology IV Diagnostic stethoscope is probably the best stethoscope Littmann has come up with so far. It has incredible, much-improved tubing, a high-quality chest piece that provides higher frequency and clearer sound inputs, and a wide array of options for customization.

What We Don’t Like About It

The one thing that may turn off buyers from purchasing the Littman Cardiology IV is its price. The Littmann Cardiology IV is a bit more pricey than the rest of the Littman stethoscope range.

Let’s take a closer look and compare prices between Littman Cardiology IV and its predecessor, the Littman Cardiology III. In its initial release, sources confirmed that the Littman Cardiology IV is double the price of earlier Littman stethoscope models.

This significant price difference is truly a reflection of its improved features. Imagine how comfortable and reliable this stethoscope is for its dual-sided chest piece, excellent acoustics, a wide array of customization options, ergonomic headset, and advanced tubing!

Our Star Rating For The Cardiology IV

Despite the stark difference in prices, I would still say that the 3M Littmann Cardiology IV is worth the investment. I would give it a 4.7 out of 5. 

It is probably time to move on from stethoscopes with lower specs and open our minds to more advanced stethoscopes that can give more accurate and precise readings in helping doctors and veterinarians to arrive at sound and smarter decisions.


Here’s a general summary showing the fantastic features that the Littmann Cardiology IV has:

Chestpiece Type

Dual-sided; chalice shape, versatile and convertible from pediatric to a traditional open bell

Diaphragm Type

Tunable diaphragms on both sides


16 x 7.3 x 5.8 inches


15.9 ounces

Metal Finish Color Options

Stainless Steel Exterior Finish, Black, Mirror, Smoke

Tube Color Options

Black tube


Seven-year warranty


The Littmann Cardiology IV offers Levels 9-10 of acoustics which translates to outstanding acoustic sensitivity helping doctors and medical professionals to derive a detailed diagnostic medical sound examination.

Using a stethoscope with Levels 9-10 levels is advantageous when medical professionals take care of patients in challenging life-and-death situations and those receiving treatment and recuperating in critical care environments.

Ear tip comfort

The Littmann Cardiology IV still retains all of the good qualities that the Littmann Cardiology III stethoscope has. For example, it still has the same soft sealing snap-tight ear tips that other Littmann stethoscopes boast.

Focus and attention to detail are skills that medical practitioners need when working. The soft rubber tips seal of the 3M Littmann Cardiology IV enables the user to focus and give their full attention to the task. 

This stethoscope does an outstanding job of isolating the sounds coming from the body of the subject you are examining from the white noise around you.

You can efficiently isolate the sounds you want to hear without the discomfort that the tubes may bring with their soft, rubber tips. Furthermore, the Littmann Cardiology IV retains its durability and performance even when its user may pull its tubing off to listen to what others around them were saying.  

Pros and Cons of the Littmann Cardiology IV Diagnostic Stethoscope

There is no reason to give a blatant review about the Littmann Cardiology IV. This stethoscope is everything that a doctor, veterinarian, or medical practitioner could hope for. Here are a couple of reasons explaining why nothing could go wrong with this product. We also provide some minor reasons that may dampen your enthusiasm to buy it.


  • Outstanding acoustic performance that gathers a very detailed sound collection using its dual-sided chest piece.
  • Significant reduction of background noise from its single tubing.
  • Versatile, convertible diaphragms that you can easily change to an open bell.
  • Length is adjustable to two different options for a higher level of comfort while working.
  • Its ability to pick up low frequencies and high frequencies makes it a versatile device for a wide range of purposes.
  • Overall ergonomic design with its tubing consisting of enough length and excellent material.  
  •  Manufactured in the USA.


  • Its price is higher than previous stethoscope Littmann cardiology options.
  • Its specs may be too advanced for beginner practitioners in the field.
  • Individuals that do not have prior experience conducting physical assessment may underestimate the product and not see its value.

Available Replacement Parts for the Littmann IV Stethoscope Model

It is probably safe to say that products made in the US have higher quality owing to state-of-the-art facilities, higher standards that companies uphold, and accessible material traceability. Moreover, American companies value customer feedback and hold it as vital in improving their product quality.

The manufacturing of the  Littmann Cardiology IV, the Classic Littmann stethoscope model, and other Littmann stethoscopes took place in the USA. Each stethoscope results from a rigorous process following quality standards that aim to satisfy its users’ needs. 

The Littmann Cardiology IV, in particular, holds a long-term free repair and replacement warranty that one can enjoy within its seven-year warranty period.

Meanwhile, one can opt for replacement parts if the stethoscope is starting to perform in a substandard manner. Then again, the chances of needing a replacement are pretty slim. As long as the user takes care of the stethoscope and does simple maintenance techniques regularly, then the Littmann Cardiology IV can perform at an optimal level for a long time.

If problems arise, the customer can readily reach out for Littmann Technical Assistance. One can also buy individual parts of the Littmann Cardiology IV on Amazon. Some of these spare parts, however, may not be available from time to time.

On Amazon, one can avail of the spare parts in one reliable and convenient package consisting of the tunable diaphragm and rim assembly for the adult side of the chest piece. The available colors may vary, too. There is also a tunable diaphragm and rim that one can use for the pediatric side of the stethoscope chest piece. All spare parts come from the USA.

FAQ’s on the Littmann IV Diagnostic Stethoscope

What is the difference between the Littmann IV and Master Cardiology Stethoscopes?

The Littmann Cardiology IV and the Master Cardiology Stethoscopes are both of high-caliber and of outstanding quality. However, before buying any of these two stethoscopes, you may want to consider their key differences that may affect user experience.

In terms of structure, the Littmann Cardiology IV stethoscope comes with a double-sided, chalice-shaped chest piece. It has a tunable diaphragm on both sides, the bell and diaphragm sides. The Master Cardiology model, on the other hand, consists of a single-sided chest piece with one tunable diaphragm.

The Master Cardiology is heavier than the Littmann Cardiology IV. If one examines all the three Littman stethoscopes, one will find out that the Master Cardiology is the heaviest among all of the 3M Littmann Cardiology IV Diagnostic stethoscope products. One can attribute this change to the thicker stainless steel in its chest piece to improve acoustics. If we look at the performance in their acoustics, Master Cardiology wins in this area.

Meanwhile, nothing comes close to the Littmann Cardiology IV’s ability to study and examine cardiac, lung, and body sounds.

These two stethoscopes come with excellent features. The final decision probably would rely on the user’s individual needs. Some users may give more consideration to its chest piece over acoustic performance. Some may also opt to buy a lighter stethoscope, which is not cumbersome to use at work.

Familiarity and the ability to use any instrument is also an essential factor.  In general, we tend to choose the stethoscope and other medical tools that we are most familiar with. In this way, we can give more accurate readings and render high performance.

Is the Littmann Cardiology III better than the IV?

The answer is a resounding–Yes! The Littmann Cardiology IV presents a much-improved diaphragm which resulted in more precise acoustics. Those who used the Littmann Cardiology IV were happy to find lower external noise levels than its predecessor–the Cardiology III. One user reported that the Littman IV quickly picks up any grade 2/6 murmur.

The Cardiology III Stethoscope, on the other hand, may experience some short lags. There is also an increased satisfaction in the Littmann Cardiology IV Diagnostic stethoscope’s tubing as thicker and more comfortable when one is not using it and would like to hang around your neck.

Is the Littmann IV Cardiology Stethoscope only suitable for cardiologists?

Medical practitioners, medical students, and nurses who have tried using this stethoscope greatly admired it for its top-notch, clear sound quality. This is an upgrade that one needs in any auscultation.

Can I engrave my Littmann IV Stethoscope?

Engraving your name on the Littman Cardiology IV stethoscope will void the seven-year warranty it gives to its users. But yes, you always have the option to avail of a specialist engraving service for a stethoscope. However, always remember that doing so will automatically banish the Littmann warranty.

You may also think twice about engraving something on your stethoscope, as this may lower its resale value.  It’s common among health professionals to sell their devices to get an upgraded version. If you want to do this in the future, you may find it challenging to sell your Littmann Cardiology IV as a second-hand item due to the engraving.

Does the Littmann IV Stethoscope come with a case?

Unfortunately, not. The 3M Littmann Cardiology IV stethoscope does not come with a case when one purchases it. Meanwhile, the user may want to invest in a protective casing for the Littmann Cardiology IV to lengthen its longevity and preserve its sound quality.

Why Should You Trust The Authority of Veterinary Stethoscopes?

Littmann has been the leading authority in the world of stethoscopes for both human and animal patients. In addition, Littmann has been manufacturing stethoscopes to suit its user’s needs for many years. 

So whether you are a medical doctor, pediatrician, veterinarian, or intern, an appropriate Littmann stethoscope to suit your needs and one that will provide a faultless function for optimum patient diagnostics.

Vet Stethoscopes gathers and analyzes data, reviews, and product comparisons. We examined the Littmann Cardiology IV review pieces from trusted sources to deliver our assessment and final verdict. In doing so, we may help readers decide better and choose the right stethoscope for them.

Some Information on the Littmann Brand

Every Littmann stethoscope carries its brand reputation as the choice of professionals. Consistency and excellent quality are two objectives that Littmann adheres in the manufacturing of its stethoscopes. The company ensures that every part of its stethoscope is a product of innovation, engineering, advanced material selection, and precise manufacturing.

The manufacturer of the 3M Littmann Cardiology IV stethoscope, in particular, ensures that this stethoscope lives by Littmann’s promise to manufacture stethoscopes with a high level of consistent quality that no other brands can do.

The Cardiology IV is sturdy and refined in isolating subtle sounds that one can pick up in the most critical and challenging environments. This stethoscope may allow you to listen to process minute sounds such as aortic stenosis, S3 gallop murmurs, and faint pulmonary anomalies, among others.

Its improved audibility will help medical practitioners identify high-frequency sounds. This is a new feature that one may not find in its Cardiology III predecessor.

What Should You Consider Before Buying a Stethoscope? – A Buying Guide

Stethoscopes are handy and helpful devices that medical practitioners use in conducting a superficial examination of a patient’s internal organs. This device will let the practitioner listen to the patient’s heart, lung, and gastrointestinal system. 

Would you like to buy a stethoscope? Then consider the following first.

Ask yourself whether you would like to buy a veterinary stethoscope or a human stethoscope.

Veterinary stethoscopes and human stethoscopes share a lot of similar functions and characteristics. However, one should consider the differences in the sizes, shapes, behavior, and movement among people and animals. 

Purchasing decisions will end the dilemma and allow you to arrive at informed conclusions.

In buying veterinary stethoscopes, be specific on what type of animal you will use them for

When buying a stethoscope, you should ensure that factors such as the patient size, weight, breed, location of organs, and other considerations will not hinder the stethoscope from functioning its best.

The leading stethoscope manufacturer, 3M Littmann, has several stethoscope options for veterinarians. You can choose from its four choices of veterinary stethoscopes such as the Littmann Infant, Littmann Paediatric, Littmann Veterinary, and Littmann Lightweight.

The classic Littmann stethoscope, and the 3M Littmann Master Classic II Veterinary Stethoscope, remain in the form of a popular and enduring favorite among medical professionals. 

This stethoscope is famous for its lightweight, single-sided chest piece, convenient tubing length, excellent tubing quality, appealing colors, and other ergonomic features make this a crowd favorite.

Consider the stethoscope’s features.

The features of a stethoscope should match its user’s needs perfectly. Here is a list of features that one should consider in buying a stethoscope.

Tube length

In general, the length of the stethoscope does not significantly affect acoustic performance and the accuracy of the user’s reading and diagnosis. However, the length of tubing may affect the ease of movement among health practitioners while using it. 

Therefore, some may choose a stethoscope with longer tubing as it is more comfortable when they want to drape it around their neck.

Longer tubing may also help shorter practitioners with shorter hands conduct the examination efficiently. When one needs to examine a patient at a distance, naturally, they would need a stethoscope with longer tubing. This type of stethoscope would also help its user maintain proper posture.

Among animals, longer tubes would help veterinarians to feel comfortable while examining larger animals.

Chestpiece and diaphragm

Humans and animals react differently when they are in a clinic or hospital. Humans may want to maintain composure despite tension and pain. However, animals do not hide their discomfort and agitation even during their first seconds in the vet’s clinic.

Thus, when purchasing a veterinary stethoscope, choose one that comes with a double-sided chest piece and tunable diaphragm, such as the 3M Littmann Cardiology IV Diagnostic stethoscope. Devices like this will help vets perform a quick but accurate reading without interruption.

Meanwhile, human stethoscopes need advanced features and outstanding acoustic performance to identify high and low frequencies and other sounds from internal organs. These devices should also have an ergonomic design to give comfort and ease to their users.


Medical practitioners lead a hectic schedule. Thus, choosing a stethoscope with excellent materials will help them save time in asserting extra effort to clean and maintain it. Furthermore, the 3M Littmann is the pioneer of manufacturing outstanding stethoscopes with advanced features regarding the quality of spare parts.

Our Overall Take on the Littmann IV Diagnostic Stethoscope

The Littmann Cardiology IV does not intend to change the excellent features of its predecessor, the Littmann III. But, this stethoscope improves and modifies the existing one for more improved and satisfying outcomes.

The two stethoscope options both have standard rubber tubing. But the 3M Littmann Cardiology IV has thicker and stiffer tubing, making it more appropriate in examining animals of different heights, weights, and behaviors.

Its much-improved chest piece and diaphragm, the Littmann Cardiology IV, may also provide more scientific data among animals of varying sizes and shapes. And, because of its high-quality materials, this stethoscope will most likely function well and last longer, given that its owner will take care of it and conduct basic maintenance rituals regularly.

Among the Littmann stethoscope options, the Littmann Cardiology IV is probably the best that you can have. Its clear, crisp acoustics and ability to pick up high and low frequencies will help you arrive at more sound decisions. Its ergonomic, lightweight design will also keep you at ease while you are busy pursuing your goals.

In general, the Littmann Cardiology IV is worth the investment, despite being pricy. Its outstanding acoustic performance, ability to reduce background noise, versatility, adjustable length options, and overall ergonomic, user-friendly design are valid reasons for this stethoscope to get the reputation that it deserves. 

Meanwhile, before buying this stethoscope, consider asking yourself if you are comfortable using it. When you are doubtful about it, consider choosing the Classic Littmann stethoscope and other stethoscope options that you are most comfortable and familiar with.

Because it is priced higher than the other stethoscope options, you may also have to decide whether to keep it for a long time or sell it after a couple of years. If you opt to keep it your personal property, you should not engrave it with your name or initials.

Doing so will only lower its cost or rule out the possibility of selling it to another user. Also, engraving the stethoscope will automatically void its seven-year warranty. Losing this privilege will give you a disadvantage in case your stethoscope needs a repair or part replacement.

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