Features： 1、Comfortable to Wear: The soft ear plugs fit into the ear canal, are soft and comfortable, and do not compress the middle ear bone. 2、Amplifies Sounds: Stethoscope is equipped with an ultra thin fiber diaphragm that amplifies heart and lung sounds and detects high frequency sounds. 3、Double Headed: Stethoscopes with two ear plugs, which is suitable for patients of all ages and designed for professionals and students. 4、Widely Used: For listening to the human heart and lung organs and other activities with sound changes. Suitable for nurses, nursing students, and doctors. 5、Medical Stethoscope: Multifunctional stethoscope, durable and convenient, which with performance, accurate diagnosis of health. Specification： Item Type: Stethoscope Material: Aluminum alloy, PVC Use: For listening to the human heart and lung organs and other activities with soundchanges Package List： 1 x Stethoscope 1 x Instruction Manual 4 x Earplug 1 x Storage Box 1 x Diaphragm