The MEDITIVE stethoscope are made using premium Stainless Steel chest piece with High acoustic sensitivity. PVC tubing stays soft and flexible and reduces rubbing noise. This model comes with an ID tag to make sure you never lose it. With excellent acoustic sensitivity & soft ear tips, each stethoscope is designed to provide provide comfort for long hours of usage. The adjustable frequency diaphragm technology allows you versatility in this single sided unit, by giving you access to the traditional low frequencies of a bell and the high frequencies of a diaphragm with a simple adjustment in pressure on the chest piece during your exam.