TRUSTED by Doctors, Nurses, Students, Home Health, Medical Providers since 1971 | Backed by our Full Lifetime Warranty & Free-Parts-For-Life Program | Latex-Free MD ONE Titanium line is known for performance, durability and aesthetics. Constructed from acoustically-superior and lightweight titanium, ending the tradeoff between sound quality and weight. Makes a great gift with over 20 color variations to choose from. CHESTPIECE: 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 chestpiece attachment available (sold separately). PATENTS to maximize sound performance, durability and comfort for extended use, including our GlideLock System on our chestpieces to lock in the diaphragm and bell channels. ErgonoMax Headset with dual-leaf spring construction, patented Acoustic Pyramid Chamber and patented SafetyLock Eartip adaptors that are non-invasive and lead the industry in user safety. TUBING that 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.