The New United stethoscope model R17-36A is a high-quality unit designed specifically for educational use only. This stethoscope is a single unit from the United brand, perfect for students and educators in the field of healthcare. With its superior sound quality and ergonomic design, this stethoscope is ideal for Listening to and detecting sounds within the human body for educational purposes. It is not intended for medical use, making it a safe and reliable tool for teaching and learning.