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3M Littmann Cardiology IV Diagnostic Stethoscope (6152, 27-inch Black Tube)
For Him / Her / Kids

Littmann Cardiology IV Stethoscopethe upgrade from the one they bought in school

3M Littmann Cardiology IV Diagnostic Stethoscope (6152, 27-inch Black Tube)

Reviewed by the WhyToBuyThis team · Updated September 2026 · How we choose

Perfect for

  • Residents upgrading
  • Internal medicine and cardiology
  • ED and ICU
  • 7-year warranty
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Price: $199.99

Price may change on Amazon. As an Amazon Associate we earn from qualifying purchases. This won't cost you anything extra.

  • Great gift ideaChosen for real-world gifting
  • Hand-pickedCurated, not scraped
  • Honest reviewThe catch, not just the hype

Why this gift works

The 3M Littmann Cardiology IV Stethoscope (model 6152) has a dual-sided stainless steel chestpiece with tunable diaphragms on both the adult (1.7 in) and pediatric (1.3 in) sides, so low and high frequencies are picked up by changing pressure rather than flipping the chestpiece. It has 27-inch dual-lumen black tubing, weighs 6.2 oz, is made in the USA without natural rubber latex, and carries a 7-year warranty, per the retailers' spec sheets.

Many doctors are still using the stethoscope they bought as students. The Cardiology IV is the step up that retailers describe as built for critical-care settings such as the ED and ICU - the one gift they will wear every day.

Who is this gift for?

Great for

  • A resident moving on from a student stethoscope
  • Cardiology, ED and ICU doctors
  • Med school graduation

Think twice if

  • They already own a premium stethoscope
  • They need a different tube length

The catch

It costs around $200, and many doctors already own a good stethoscope, so check they want an upgrade; this listing is the 27-inch black tube only (other lengths and colors are different model numbers); and engraving or an ID tag is not included.

Skip if they bought a Cardiology IV recently, or work in a specialty that rarely uses a stethoscope.

Key specs

3M Littmann Cardiology IV Diagnostic Stethoscope (6152, 27-inch Black Tube) specifications
Model6152, black tube, standard finish
Tube length27 in, dual-lumen
ChestpieceStainless steel, dual tunable diaphragms
Diaphragms1.7 in adult, 1.3 in pediatric
Weight6.2 oz
Warranty7 years

Worth knowing before you buy

  • Littmann's ID-tag bundle is a separate listing.
  • Check the seller - buy from an authorized listing.

Why we like it

  • Tunable diaphragms on both sides
  • Dual-lumen tubing
  • 7-year warranty
  • Used for a whole career

What to look for in a stethoscope gift

  • Acoustics. Cardiology-grade models help with subtle heart sounds.
  • Tube length. 27 in is standard; taller users may want longer.
  • Warranty. Premium models carry longer warranties.

Questions people ask

The Cardiology IV sits above it in Littmann's range, with dual-lumen tubing and a 7-year warranty (the Classic III has 5).

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