• Littmann quality throughout the model, from the super-soft eartips to the bell design • Double-sided stethoscope with tunable diaphragm, allows you to hear both high and low frequency sounds simply by varying the pressure applied to the chestpiece • For low frequency sounds, use the open bell • 3M Littmann patented snap-tight super-soft eartips, provide acoustic isolation and a soft, comfortable fit • Anatomical binaural design provides an optimal fit in the ear canal and ensures proper sound transmission