TRUSTED by Doctors, Nurses, Students, Home Health, Medical Providers since 1971 | Backed by our Full Lifetime Warranty & Free-Parts-For-Life Program | Latex-Free ProCardial Cardiology Titanium line is known for performance, durability and aesthetics. Constructed from acoustically-superior and lightweight titanium with extra deep diaphragm and bell, ending the tradeoff between sound quality and weight. Makes a great gift with over 20 color variations to choose from. CHESTPIECE: cardiology grade dual head stethoscope for adult diagnostics that delivers transmission of heart, lung, stomach (GI, bowel, etc.) & blood pressure flow (Korotkoff) sounds with acoustic integrity & clarity for doctors, nurses, students in clinical or home settings. TRUE BELL & DIAPHRAGM: designed with a turnable fully rotating stem for diaphragm & bell side to capture high or low frequency sounds as needed. CONVERTIBLE full pediatric & infant-neonatal chestpiece (sold separately). PATENTS to maximize sound performance, durability and comfort for extended use, including our GlideLock System on our chestpieces to lock in sound in the diaphragm and bell channels. ErgonoMax Headset with dual-leaf spring construction, patented Acoustic Pyramid Chamber with patent pending STEnT to ensure structural sound integrity and patented SafetyLock Eartip adaptors that are non-invasive and lead the industry in user safety. TUBING: C34 tubing has 34 channels etched inside to direct clear and precise sound waves without interference. Tubing is flexible and thicker for better sound transmission, longer for your comfort and latex free. INCLUDES: 3 pairs of ComfortSeal soft silicone eartips in sizes small, medium and large, extra diaphragm and ID tag.