The 3M™ Littmann® Cardiology III™ Stethoscope is capable of providing a high standard acoustic performance along with optimum versatility. The chestpiece is provided with tunable diaphragm on each side. For auscultation of adult and pediatric the chestpiece is provided with double sides. By using the non chill bell sleeve the pediatric side of the chestpiece is convertible to an open bell in case of the low frequencies. The pressure based sound frequency is adjustable by the tunable diaphragm provided with the product. The tubes consist of the parallel sound channels for minimizing the noise. The product offers a great versatility and can be used for both pediatric and adults with its two sided chestpiece which are the two variants of the product. The product is able to offer convenience by having diaphragm with the tunable technology on each side of the chestpiece which enables the audibility of high and low frequency sound by the chestpiece with a light pressure.