3M Littmann Cardiology III Stethoscope offers outstanding acoustic performance and exceptional versatility. It features two tunable diaphragms which allow the user to conveniently alternate between low and high frequency sounds without turning over the chestpiece. The large side can be used for adult patients, while the small side is especially useful for pediatric or thin patients, around bandages and for carotid assessment.Cardiology - high performance adult and pediatric.Features two-tubes-in-one-design.Five-year warranty.Littmann soft-sealing ear tips.Length 27".