The 3M Littmann Classic III 27 inch Monitoring Stethoscope (5811) is a high-quality and versatile medical device designed for various disciplines such as emergency medicine, cardiology, and family medicine. Made in the United States, this stethoscope unit is intended for professional use in healthcare settings. With a focus on precision and accuracy, this model is ideal for healthcare professionals seeking reliable and durable medical equipment. The California Proposition 65 warning also ensures users are aware of potential chemical exposures.