Product Description
Littmann Cardiology IV Stethoscope Model 6165
Precision acoustics. Sleek design. Trusted performance.
The Littmann Cardiology IV Rainbow Edition 6165 brings serious performance with a bold, eye-catching twist. The striking rainbow-finish chestpiece paired with all-black binaurals and black tubing creates a sleek, modern look that stands out without feeling over the top. It’s powerful, stylish, and perfect for anyone who wants the trusted acoustics of the Cardiology IV with a design that feels confident, unique, and impossible to ignore.
Whether you're a physician, nurse, EMT, or medical student, the Cardiology IV delivers the performance and versatility needed to confidently assess both adult and pediatric patients.
Why Choose the Littmann Cardiology IV?
- Superior Acoustic Performance – Hear subtle heart, lung, and body sounds with clarity
- Dual-Sided Chestpiece – Easily switch between adult and pediatric patients
- Tunable Diaphragm Technology – Detect high and low frequencies without repositioning
- All-Black Professional Design – Sleek, modern, and durable
- Comfortable 27” Length – Fits securely around your neck for all-day use
- Weighs less** than other stethoscopes
- Same-Day Engraving Available – Personalize for identification or gifting
Built for Clinical Excellence
Engineered for demanding environments like hospitals, ERs, and clinics, the Littmann Cardiology IV features dual-lumen tubing that eliminates noise interference and delivers clear sound directly to each ear.
It’s more than twice as loud* as comparable stethoscopes and excels at detecting low-frequency (below 120Hz*) sounds such as:
- Korotkoff sounds
- Mitral stenosis murmurs
- S3 and S4 gallops
Product Features & Specifications
Model: 6165
Color: Rainbow finish chestpiece, all black binaurals, black tubing
Length: 27 inches
Weight: 6.2 oz
Chestpiece:
- Adult diaphragm: 1.7”
- Pediatric diaphragm: 1.3”
- Convertible pediatric side to open bell (included sleeve)
Technology & Build:
- Dual-lumen tubing for reduced noise interference
- Tunable diaphragms on both sides
- Soft-sealing eartips for comfort and acoustic seal
- Adjustable headset for personalized fit
- Latex-free, phthalate-free tubing resistant to oils and alcohol
Warranty: 7-year manufacturer warranty
Origin: Made in the USA
Personalize with Same-Day Engraving
Add a custom engraving that appears in dark contrast on the stainless steel chestpiece.
Perfect for:
- Preventing loss or theft
- Medical school graduation gifts
- Professional identification
Who This Stethoscope Is For
- Physicians and specialists
- Nurses and nurse practitioners
- EMTs and paramedics
- Medical and nursing students
Trusted by Medical Professionals Worldwide
The Littmann Cardiology IV is one of the most widely recommended stethoscopes for its balance of performance, durability, and comfort. It’s built to handle the demands of daily clinical use while delivering consistent, reliable results.
Ready to Upgrade Your Diagnostic Tools?
Get the Littmann Cardiology IV Model 6165 today and experience unmatched acoustic performance.
- Order now for fast shipping
- Add engraving for same-day personalization
Disclaimer
*Based on tests against comparable stethoscopes in the same class using recorded heart sounds.
**Based on published weights of comparable stethoscopes in the same category.
Product Videos
Custom Field
Product Reviews
36 Reviews Hide Reviews Show Reviews
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Ms Joselyn Martinez
Love this sounds very clear worth the investment.
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Littmann Stethoscope
I could not be happier with this company! Ordering was quick and simple and I had the product in 3 days. Fantastic :)
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Just what she wanted
I purchased this as a birthday gift for my wife. After 13+ years in EMS (EMT/Paramedic) with the same old Littman stethoscope, she decided to go to nursing school last year, and starts her clinicals soon.... so this was the perfect gift! Thank you.
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Cardiology IV Stethescope
I am very pleased with my new stethoscope. It arrived within a few days of placing my order. I love the new tubing. It is lighter weight and does not change shape if I forget and leave it in a cold or hot car.
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Excellent service
I ordered a stethoscope with engraving and expected at least a 2 week turn around time. I was pleasantly surprised when my stethoscope arrived in less than a week.
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Great!
Love the rainbow option and engraving. Quick shipping
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Nurse
The cardiology Ive is amazing. The sound is clear, the stethoscope is comfortable and light.
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Great service
I bought this for a Christmas present and it arrived early. The stethoscope was very good and the engraving was perfect. I would highly recommend this product and company to everyone!
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In love with my new stethoscope!!
Extremely happy with my purchase.


