The Master Cardiology provides the best acoustics Littmann stethoscopes offer. Solid stainless steel single sided chestpiece. Two tubes in one design reduces noise from two tubes rubbing together. Soft sealing eartips. Patented Littmann® special procedure adapter allows auscultation of difficult body parts, and pediatric or emaciated patients.. Superior acoustic performance: Experience the finest sound quality Littmann has to offer for accurate auscultation of heart, lungs, and other body sounds.. Durable, precision-crafted chestpiece: Handcrafted from solid stainless steel for exceptional sound transmission and lasting reliability.. Enhanced clarity: Innovative dual-lumen tubing design eliminates the distracting noise caused by separate tubes rubbing together.. Exceptional comfort & ve...