3M Littmann Dual Cardiology III Stethoscope - Black

Versatile, double-sided chestpiece for adult and pediatric auscultation.

Suggested applications:
Used as a diagnostic tool as part of the physical assessment of cardiac, adult and pediatric patients. Ideally suited for: cardiologists, critical care nurses, EMT, ER doctor, nurse practitioner, pediatric specialist, physician assistant, registered nurse, respiratory specialists, medical students and nursing students. 

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

The 3M™ Littmann® Cardiology III™ Stethoscope, one of the most recognized stethoscopes in the profession, 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.


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 healthcare provider to focus on the patient, while the non-chill rim provides patient comfort.

Pediatric side converts to an open bell by replacing the diaphragm with a non-chill bell sleeve (included).


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.