Handcrafted Since 1971 | Lifetime Warranty | Free-Parts-for-Life Program | Latex Free. Titanium 3-in-1 Cardiology Stethoscope. The patented MDF ProCardial C3 Stethoscope forged from premium-grade titanium stands alone among all cardiology stethoscopes. With the six included conversion attachments, this stethoscope can be easily transformed into nine different configurations, including a complete adult, pediatric, or infant cardiology stethoscope.The versatile ProCardial C3 is disrupting the industry with its light-weight performance, durability, and innovation. Chestpiece: Titanium dual-head chestpiece features patented full-rotation acoustic valve stem with SoundTight GLS technology to seal in sound and green indicator dot. Hand polished, pre-angled titanium headset. Included Accessories: 1 pediatric diaphragm with attachment, 1 pediatric bell with attachment, 1 adult bell with attachment and carrying clip, 2 extra sets of ComfortSeal eartips in varying sizes and 1 ID tag.