3M Littmann Classic II Infant Stethoscope, Black Tube, 28 inch, 2114 Dual-sided chestpiece and floating diaphragm provides high acoustic sensitivity for listening to low (bell) and high frequency sounds Special design and sized dual-sided chestpiece helps assess and diagnose infant patients Anatomically designed headset is angled to meet the path of the ear canal Latex-free materials accommodate allergy sensitive users Nonchill rim and diaphragm offers welcome patient comfort