The 3M™ Littmann® Master Cardiology™ Stethoscope features tunable diaphragm technology—a 3M invention—that lets clinicians hear different frequency sounds by simply adjusting the pressure on the chestpiece. Unlike two-sided models, there’s no need to turn over and reposition the chestpiece. Hold the chestpiece with light pressure to hear low frequency sounds; press a little more to hear higher frequency sounds. This time-saving feature allows the healthcare provider to focus on the patient, while the non-chill rim provides patient comfort. Headset tension is easily adjusted for head size and comfort by squeezing together or pulling apart the eartubes. Snap-tight, soft-sealing eartips conform to individual ears for an excellent acoustic seal and comfortable fit. Eartips snap firmly onto the ends of the eartubes and, for safety, require a significant effort to remove. Resilient next-generation tubing retains its shape and flexibility even after folding tightly into a pocket. It provides longer stethoscope life due to improved resistance to skin oils and alcohol, and is less likely to pick up stains. Next-generation tubing is not made with natural rubber latex, a benefit to sensitive medical professionals and their patients. And, to play its part in the protection of human health and the environment, the next-generation tubing does not contain phthalate plasticizers. The Master Cardiology stethoscope is made in the USA for consistent quality. It comes complete with large and small soft-sealing eartips, large firm eartips, Special Procedures Adapter, and instructions. Specifications: • Chestpiece Size : 2 Inch / 5.1 cm • Chestpiece Weight : 3.2 Ounce • Chestpiece Weight (metric) : 90 g • Diaphragm Diameter : 2 Inch • Diaphragm Diameter (metric) : 5.1 cm • Length Unit : 27Inch • Length Metric Unit : 69cm • Net Weight Unit : 6.6oz • Net Weight Metric Unit : 185g • Small Diaphragm Diameter : Applications : Cardiology/High Performance • Brand :3M™ Littmann® Stethoscopes • Binaural Construction : Double Lumen • Chestpiece Finish : Machined Stainless Steel • Chestpiece Technology : Single sided • Color Group : Purple • Diaphragm Material : Epoxy/Fiberglass • Diaphragm Shape :Round • Diaphragm Type : Tunable Diaphragm • Eartip TypeSoft Sealing • Extra Eartips : Yes • Headset Material : Wide diameter aerospace alloy / Anodized aluminum • IB Offering :Yes • Model :Master Cardiology™ • Performance :10 • Product Color : Plum • Special Adaptors : Yes • Tube Color : Plum • Tube Construction : Double Lumen • Tunable Diaphragm : Yes