3M Littmann Classic II S.E. Stethoscope offers high acoustic sensitivity for superior performance by featuring a two sided chestpiece. A tunable diaphragm on one side augments the traditional bell function of the opposite side. This allows the user to conveniently alternate between low and high-frequency sounds without turning over the chestpiece.

Comfortable fit and excellent acoustic seal with patented 3M Littmann® snap-tight soft sealing eartips.
Durability is demonstrated by the fact that the headset can be reliably flexed one million times.