3M™ Littmann® Stethoscope [Master Cardiology] Stethoscope Littmann Master Cardiology Black Edition (2161) 68 cm No name engraving Purchased for a list price of 45,000 yen. *The box has some scratches, but the main body is relatively clean. I bought it a long time ago, but I haven't used it much. The rim and diaphragm are easy to remove and clean/replace. The tube is a bit short at 68cm. The 3M Littmann Master Cardiology provides excellent sound quality and can capture subtle changes in heart and respiratory sounds. It is an essential item for healthcare professionals to improve diagnostic accuracy. It uses latex-free materials, so there is no need to worry about allergies. The design fits the ears and is comfortable even for long periods of use. Feature 1: I believe that the diaphragm is the biggest factor supporting the Master Cardiology's maximum auscultation performance. The large-diameter diaphragm allows you to capture even the most delicate sounds without missing them. In addition, the structure is different from a general diaphragm, and there is an elastic membrane like rubber around the diaphragm. It is a diaphragm worthy of Littmann's highest peak. Feature 2: You can switch between low-frequency and high-frequency modes depending on the strength of the pressure you apply. The Master Cardiology firmly covers the frequency range necessary for auscultation. Feature 3: The ergonomic chest piece design has a shape that accommodates any way of holding it, so you can use it without putting stress on your hands. Feature 4: There is a small hole in the center of the diaphragm. This is opened to prevent pressure on the ears when the chest piece is pressed firmly and to improve the movement of the diaphragm (air floating diaphragm specification). #Stethoscope #Littmann #Medical #Doctor #Nurse #MedicalSchool #NursingSchool #MedicalStudent #NursingStudent