• 3M™ Littmann® Cardiology IV™ Stethoscope
  • 3M™ Littmann® Cardiology IV™ Stethoscope

    • Outstanding acoustics with better audibility of high-frequency sounds (adult side, firm pressure).
    • Tunable diaphragm: Hear high or low frequency sounds by slightly adjusting pressure on the chestpiece.
    • Dual-lumen tubing: Two sound paths in one tube eliminates the rubbing noise of traditional double tubes.
    • Next-generation tubing lasts longer and resists stains. Not made with natural rubber latex or phthalate plasticizers.
     More...

    Hear more with the new Cardiology IV stethoscope.

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    Hear a new level of quiet.


    • A black cardiology IV stethoscope on a white background.
       

      Hear more with the new Littmann Cardiology IV Stethoscope. 

      Catching subtle sounds is critical to accurate patient assessment and diagnosis. The new Cardiology IV stethoscope is engineered to help you perceive the barely perceptible — the sounds that can tell you more about a patient’s condition.

      Designed for clinicians who require superior quality and exceptional versatility, the Cardiology IV stethoscope’s updated design and improved acoustics give you the ability to hear more of what you need to hear.

    The Cardiology IV stethoscope’s advanced features help you achieve more.

    • Littmann Cardiology IV Stethoscope better audibility.

      Better audibility of high-frequency sounds* helps you learn more about your patient’s condition.

    • Littmann Cardiology IV Stethoscope single-piece tunable diaphragms.

      Single-piece tunable diaphragms let you hear high and low frequency sounds on both the adult and pediatric sides of the chestpiece.

    • Littmann Cardiology IV Stethoscope pediatric side.

      Pediatric side converts to an open bell. Just remove the single-piece diaphragm and replace it with a non-chill rim.

    • Littmann Cardiology IV Stethoscope open bell.

      Open bell stays clear of dirt and debris by covering it with the small diaphragm.

    • Littmann Cardiology IV Stethoscope dual-lumen tubing.

      Dual-lumen tubing combines two sound paths in one tube, eliminating the rubbing noise of traditional double tubes.

    • Littmann Cardiology IV Stethoscope next-generation tubing.

      Not made with natural rubber latex or phthalate plasticizers, next-generation
      tubing lasts longer
      with improved resistance to skin oils and alcohol and is less likely to pick up stains.

    • Littmann Cardiology IV Stethoscope 7 year warranty.

      Seven-year warranty.

    *Adult side, firm pressure. Compared to the 3M™ Littmann® Cardiology III™ Stethoscope.

    Details
    • Outstanding acoustics with better audibility of high-frequency sounds (adult side, firm pressure).
    • Tunable diaphragm: Hear high or low frequency sounds by slightly adjusting pressure on the chestpiece.
    • Dual-lumen tubing: Two sound paths in one tube eliminates the rubbing noise of traditional double tubes.
    • Next-generation tubing lasts longer and resists stains. Not made with natural rubber latex or phthalate plasticizers.
    • Headset is easily adjusted for individual fit and comfort. Angled eartubes align with ear canals.
    • Seven-year warranty provides greater peace of mind

    The 3M™ Littmann® Cardiology IV™ Stethoscope is designed for clinicians who require outstanding acoustic performance combined with exceptional versatility. Its innovative design provides a single-piece tunable diaphragm on each side of the chestpiece.

    The 3M™ Littmann® Cardiology IV™ Stethoscope is the next generation of one of the most recognized stethoscopes in the profession, offering improved acoustic performance with better audibility of high-frequency sounds (adult side, firm pressure). Its distinctive chalice-shaped chestpiece features tunable diaphragms on both sides to deliver outstanding acoustic performance, diagnostic versatility, and convenience for treating adult and pediatric patients. The pediatric side of the chestpiece converts to a traditional open bell by removing the tunable diaphragm and replacing it with the included non-chill bell sleeve.

    Both the adult and pediatric sides of the chestpiece have single-piece diaphragms that are easy to remove, attach and clean because the surfaces are smooth and without crevices.

    Tunable diaphragm technology—a 3M invention—lets clinicians hear different frequency sounds by simply adjusting the pressure on the chestpiece. Hold the chestpiece with light pressure to hear low frequency sounds; press a little more to hear higher frequency sounds. This time-saving feature allows the clinician to focus on the patient, while the non-chill rim provides patient comfort.

    Headset tension is easily adjusted for head size and comfort by squeezing together or pulling apart the eartubes. Snap-tight, soft-sealing eartips conform to individual ears for an excellent acoustic seal and comfortable fit. Eartips snap firmly onto the ends of the eartubes and, for safety, require a significant effort to remove.

    Dual-lumen tubing combines two sounds paths in one tube, eliminating the rubbing noise that traditional double tubes create. This feature makes it possible for the clinician to hear patient sounds with less interference.

    Resilient next-generation tubing retains its shape and flexibility even after folding tightly into a pocket. It provides longer stethoscope life due to improved resistance to skin oils and alcohol, and is less likely to pick up stains. Next-generation tubing is not made with natural rubber latex, a benefit to sensitive clinicians and their patients. And, to play its part in the protection of human health and the environment, the next-generation tubing is not made with phthalate plasticizers.

    The Cardiology IV stethoscope isn’t just for cardiologists. It is used by specialists and general practice physicians, critical care nurses, EMTs, medical students, and other healthcare professionals to identify, listen to, and study cardiac, lung, and other body sounds in adult and pediatric patients. The Cardiology IV stethoscope is made in the USA and is supported by a seven-year warranty. It comes complete with large and small soft-sealing eartips, large firm eartips, non-chill bell sleeve, and instructions.

    3M™ Littmann® Stethoscopes are used by millions of medical professionals around the world who are dedicated to achieving the best patient outcomes. Littmann stethoscopes offer superb acoustic performance, consistently high quality, and outstanding value. Wearing a Littmann stethoscope is an expression of your commitment to medicine, and personal success.

    Warranty & Service

    3M™ Littmann® Stethoscope Repair Services

    Find out if your Littmann stethoscope is under warranty and view available service options and pricing (in or out of warranty) using our Warranty and Service Request Tool. This tool is only offered for USA customers.

    Find your country repair options


    For US customers only.

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    Customer Reviews
    3M™ Littmann® Cardiology IV™ Stethoscope is rated 3.4 out of 5 by 11.
    Rated 2 out of 5 by from Cardio 2 and Cardio 3 are much better I like my cardio series but I have no idea how they makes these now... The tolerance are garbage, the head swivels too much and seems too loose and for some reason mine is always half locked into place, the diaphragm always always falls off, the tubing is already getting somewhat stiff, the ear piece is not as soft as my old ones and tolerable at best... My household,immediate, and extended family are littmann fans of doctor and nurses, I'm making a step to branch out...and I like the the fact that some manufacturers have lifetime warantees
    Date published: 2018-04-06
    Rated 2 out of 5 by from Great but diaphragm fell off The quality of the product is great. I am able to hear many things my coworkers do not easily pick up on. However, only having my stethoscope for a few months, the diaphragm fell off on its own. When I picked up my stethoscope for use, the diaphragm was just gone and could not been found. The worst part, I have tried to find a replacement and there is not one. Even writing a complaint through Littmann website, no answer. I am very disappointed to have spent the money on a stethoscope I can no longer use or find replacement parts for.
    Date published: 2018-03-21
    Rated 1 out of 5 by from Diaphragm kept falling off!!! Cardio IV is really a disappointment. Imagine having to tighten the rubber/diaphragm every time you auscultate!!!
    Date published: 2018-03-18
    Rated 3 out of 5 by from Missing diaphragms! Overall I love my stethoscope, but only when I can keep the diaphragms on. They are repeatedly falling off and the pediatric diaphragm is not missing! Other than this very annoying flaw, I am very satisfied with the quality of this product.
    Date published: 2018-03-11
    Rated 2 out of 5 by from Repetitively fall off Diaphragm Great in sound quality, but unfortunately for a big flaw of Repetitively fall off Diaphragm (both sides)
    Date published: 2018-03-08
    Rated 2 out of 5 by from Works well until you lose the Diaphragms Bought this after using a cardiology III for approximately 8 years. Seems improved relative to III. Primary reason why poor rating, is the diaphragms do not stay on well despite regular use in an ER; never had an issue after 8 years with the cardiology III. Within weeks of use, I had both sides fall off repititively while in the ED. I would always have to go back into the trauma bay looking for them. Eventually, I lost both, and had to rig one of the old diaphragms from cardiology III on it. Now I am actively trying to find replacement parts, which has been difficult given how new it is. There is a warranty, but if you were to try to send in the stethoscope, it states stethoscopes shipped with missing pieces will be returned without service.
    Date published: 2018-03-05
    Rated 5 out of 5 by from So great! The good quality of this stethoscope is impressive.
    Date published: 2018-01-12
    Rated 5 out of 5 by from The best I bought the Cardiologic IV in Vet Congress I loved it!
    Date published: 2017-07-13
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    3M, Littmann, the L Littmann logo, L, Master Cardiology, Cardiology IV, Master Classic II, Classic III, and the shape of the stethoscope chestpiece are trademarks of 3M. Bluetooth is a registered trademark of Bluetooth SIG. Java is a registered trademark of Oracle.