【Adults & Children】Superior for listening to higher-pitched sounds, suitable for a wide range of auscultation, including Korotkoff sounds during blood pressure measurement, breath sounds, bowel sounds, and heart sounds. 【Improved Durability and Usability】Made of high-quality stainless steel, which not only transmits sound better than ordinary aluminum alloys but also boasts excellent durability. It can withstand frequent use. 【Abundant Accessories】Comes with three sets of ear tips of different sizes. One set is already attached to the main unit, and two sets are included. 【Non-Chilling Design】Features a non-chilling characteristic, providing greater reliability without causing discomfort.