Acoustics
The Littmann Master Cardiology stethoscope provides the best acoustics Littmann stethoscopes offer with significant improvement in low frequency responses. With the unique "Master" chestpiece, you'll get diagnostic information accurately and efficiently.
Unique patented chestpiece
With just one movement, you can get uninterrupted diagnostic response from the new Littmann Master Cardiology stethoscope. With the unique "Master" solid stainless steel chestpiece you can easily alternate between low and high frequency sounds without moving the chestpiece or operating a switching mechanism. The traditional bell mode and diaphragm mode have been incorporated into the single-sided "Master" chestpiece.
Tunable technology provides convenience, versatility and enhanced acoustics. Its dual-frequency diaphragm combines both bell (low-frequency) and diaphragm (high-frequency) modes in one chestpiece side. You control bell and diaphragm modes by pressure on the chestpiece rather than turning it over.
Bell Mode (low-frequency)
Light contact with chestpiece allows you to hear low-frequency sounds.

Diaphragm Mode (high-frequency)
Without turning the chestpiece over, use firm pressure to hear high-frequency sounds.

For bell mode low frequency monitoring, simply hold the "Master" chestpiece in place with light skin contact. For diaphragm mode high frequency monitoring, apply firm pressure on the contoured chestpiece.
Two-tubes-in-one design
Even the tubing has been designed to reduce acoustic artifact. The two tubes are incorporated into a single-tube design that eliminates noise artifact from tubes rubbing together.
3M Littmann Special Procedures Adapter
The Littmann Master Cardiology stethoscope comes with a flexible patented Littmann special procedures adapter designed for auscultation of difficult body sites (such as ankles, neck, wrists, etc.), pediatric patients as well as emaciated patients.

Comfort
The Littmann Master Cardiology stethoscope features a non-chill rim and diaphragm assembly, Each Littmann Master Cardiology stethoscope comes with a pair of Littmann Soft- Sealing Eartips designed to assure an excellent acoustic seal in the ear canal and maximum comfort. Also included is an extra pair of firm eartips for your choice of personal fit.
Durability
For long lasting performance, the headset assembly of the Littmann Master Cardiology stethoscope is permanently set at a precise angle. This assures a proper fit, minimizes air leaks and prevents the headset from loosening over time. The polished, durable, lightweight alloy eartubes will not chip or corrode. An extra-strength, internal double-leaf spring is designed to be adjustable so that it will always provide proper tension on the eartubes. The latex free tubing is constructed of a specially-formulated polyvinyl chloride that resists chemical breakdown.
