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Portable Dual Head Stethoscope Doctor Medical Stethoscope Professional Cardiology Medical Equipment Device Student Vet Nurse Stethoscope is mainly composed of pickup part (chest part), conduction part (rubber tube) and listening part (ear part). Its function is to transmit sound, amplify and transmit the internal sound of the patient's heart beat to the doctor's ear. The stethoscope can not only listen to the heart rate, but also listen to whether the heart rate is regular, whether there are abnormal heart sounds and murmurs in the membrane auscultation area, and whether there are dry and wet rales in the lung. Finally, you can hear whether there is abnormal vascular murmur in the neck, abdomen and femoral artery. In addition, you need to measure blood pressure. Features： 1. It is often used to auscultate the sound changes of human heart, lung, pulse and other organs 2. When measuring blood pressure, it is used to amplify pulse sound, which is convenient for doctors to diagnose 3. In terms of respiratory system, it can be used to listen to the breath sounds of the lung and identify the lung lesions 4. It is used to auscultate fetal heart sounds 5. Cardiovascular, can be used to listen to heart rate, heart sounds, vascular murmurs Specifications： Material: Aluminiun Alloy, Medical PVC Tube Size: Tube Lenth: Approx. 610mm, Tube Diameter: Approx. 8mm, Chest Piece Diameter: Approx. 46mm/30mm ???Hi! Dear,welcome to Out Store??? ★FACTORY DIRECT Wholesale Price ★We only sell Good Quality Products ★Quality Checked before ship out ??We are Chinese sellers, and the goods are sent from China. It takes about 7-15 days! ??We will try our best to arrange your order as soon as possible! ??After receiving the package, please check the package contents. If you have any questions, please feel free to leave us a message!