Handcrafted Since 1971 | Lifetime Warranty | Free-Parts-for-Life Program | Latex Free Constructed from premium-grade acoustically-superior stainless steel, the MDF ProCardial Stainless Steel Cardiology Stethoscope delivers accurate auscultation of heart, lung, and Korotkoff sounds with acoustic integrity and clarity. An ergonomic design ensures comfort for the doctor and patient, even during extended use. The ProCardial Cardiology is the ultimate diagnostic instrument with unmatched performance, durability, and aesthetics. With its extra-deep cone-shaped bell and ultrasensitive diaphragm, this cardiology stethoscope detects the entire frequency range required by cardiologists. Chestpiece: The patented full-rotation acoustic valve stem features SoundTight GLS technology to seal in sound, and the green indicator dot allows the user to easily identify the active sound channel. The chestpiece can be converted to nine different configurations, including a complete pediatric or infant cardiology stethoscope. Acoustic Tubing: Constructed of thicker, denser, latex-free PVC, the non-stick acoustic tubing ensures sound efficiency, provides insulation for superior sound transmission, and seals out ambient noise while preventing the cracking and wearing that can occur from repeated use. Ergonomax Headset: Hand polished, pre-angled stainless steel headset features a patented internal dual-leaf spring construction for durability and custom fit. Soft silicone ComfortSeal eartips are clear for hygienic purposes and conform to the ear to seal out extraneous noise while ensuring comfort during extended use. Patented SafetyLock eartip adaptors lead the industry in user safety. Included Accessories: 2 extra sets ComfortSeal eartips, spare ultrasensitive diaphragm, and ID tag.