The 3M™ Littmann® Cardiology III™ Stethoscope combines outstanding acoustic performance with exceptional versatility. Its innovative design offers a patented tunable diaphragm on each side of the chestpiece.
One side sized for adults and the other side sized for pediatrics. Both the large and small side allows you to hear either low or high frequency sounds by simply applying varying pressure - light pressure for low sounds or firm pressure for high sounds utilizing 3Ms own tunable technology. And, you can easily convert the stethoscope to a traditional open bell style by removing the diaphragm on the pediatric side and installing the rubber nonchill sleeve which is included with purchase. (此產品只提供英文版本)