The stethoscope is designed to meet the ear canal angle of the patented ergonomic ear tube and the ear sinus. It fits snugly into the ear canal of the listener and does not leave you feeling tired and uncomfortable. Before putting the ear tube on, please pull the ear tube of the stethoscope outward; the metal ear tube should be tilted forward, put the ear tube into your external auditory canal, make the ear sinus close to your ear canal; the size of each person's ear canal Different, you can choose the appropriate size of the ear sinus. If the wearing method is correct, but the ear sinus and ear canal are not well adhered, and the auscultation effect is not good, pull the ear tube to adjust its elasticity. Improper wearing method, the ear sinus and the ear canal are not close together, which will cause poor auscultation. For example, when the ear tube is worn, it will not be heard.

