The 3M Littmann Cardiology IV Stethoscope model 6168 in blue-black with a 27" chestpiece is a high-quality, complete stethoscope designed for use in various medical disciplines such as cardiology, emergency medicine, and pediatrics. Made by the reputable brand Littmann in the United States, this stethoscope is intended for healthcare professionals in a wide range of specialties. With its advanced features and precise engineering, this stethoscope is an essential tool for accurately detecting and diagnosing heart sounds, making it a valuable asset for any medical practice.