3M™ Littmann® Master Cardiology™ Stethoscopes

Your Price: $249.99
Additional Price:


The 3M™ Littmann® Master Cardiology™ Stethoscope provides quality acoustic response with a tunable diaphragm, dual-lumen tubing and an ergonomically-designed, stainless steel chestpiece. The tunable diaphragm technology allows clinicians to hear different frequency sounds by simply adjusting the pressure on the chestpiece. Unlike two-sided models, there’s no need to turn over and reposition the chestpiece. This time-saving feature allows the healthcare provider to focus on the patient, while the non-chill rim offers 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.


  • Tunable diaphragm allows the user to conveniently switch between the low- and high-frequency sounds
  • Resilient next-generation tubing retains its shape and flexibility
  • Dual-lumen design helps eliminate noise from double tubes rubbing together
  • Single-sided chestpiece offers portable convenience
  • Comfortably-angled headset provides quality acoustic seal
  • Non-chill rim and diaphragm offers patient comfort
  • Special procedures adaptor allows you to perform neonatal or pediatric auscultation
  • Expect peak performance with a 10 rating on a 1-10 performance scale
  • Made in the U.S.A.
  • Latex-free


  • Tube length: 27”
  • Binaural Construction: Double lumen
  • Chestpiece finish: Machined stainless steel
  • Chestpiece technology: Single-sided
  • Chestpiece weight: 90g
  • Net weight: 185g
  • Diaphragm diameter: 5.1cm
  • Diaphragm material: Epoxy/fiberglass
  • Diaphragm type: Turntable diaphragm
  • Eartip type: Soft sealing
  • Headset material: Wide diameter aerospace alloy/anodized aluminum
  • Model: Master Cardiology™
  • Patient: Adult, pediatric, infant


  • Large and small soft-sealing eartips
  • Special procedures adapter
  • Instructions

View commonly asked questions about this product.

Get FREE ground shipping on all orders $175+*. Pay $10.50 for ground shipping on orders under $175. 

When shipping ground you can expect the following transit time (business days) to your location.

Shipping Map

Exceptions to this policy would include all orders with special shipping requests (i.e. Next Day Air, etc.), orders for dealers/resellers, orders under $175.00 and all orders outside the contiguous United States. In addition, there is a $10.50 Narcotic Handling Fee on all narcotic orders.  Also, there is a $13.95 Refrigeration Handling Fee on all refrigerated medication shipments due to special requirements.

*Exceptions apply. See details.