The 3M™ Littmann® Cardiology IV™ Diagnostic Stethoscope, 6163 is a high-performance stethoscope designed for professionals who demand exceptional acoustic sensitivity and versatility in critical care and challenging environments. Below is a precise description of the product: Features: Chestpiece: Dual-sided, black-finish chestpiece with a tunable diaphragm on both the adult and pediatric sides, allowing versatility in patient assessments. Tunable Diaphragms: Allows clinicians to hear high or low-frequency sounds by adjusting the pressure on the chestpiece. Pediatric Side: Converts to an open bell by removing the tunable diaphragm and replacing it with a non-chill rim. Tubing: Durable, black tubing made of next-generation material that is resistant to stains and oils. Free from natural rubber latex and phthalate plasticizers. Stem and Finish: Matching black-finish stem for a sleek, professional appearance. Length: Standard length (27 inches) for comfortable use. Acoustic Performance: Outstanding performance for identifying subtle changes in patients' conditions. Applications: Ideal for cardiology, critical care, and emergency medicine settings. Benefits: Improved audibility of high-frequency sounds (adult side, firm pressure). Comfortable fit with adjustable headset and soft-sealing ear tips. Designed to withstand wear and tear for long-lasting use.