3M Littmann Master Cardiology Stethoscope

3M™ Littmann® Master Cardiology™ Black 1-Tube 27 Inch Tube Single Head Chestpiece Cardiology Stethoscope Tunable diaphragm allows the user to conveniently alternate between the low- and high-frequency sounds without turning over the chest piece The patented tunable diaphragm conveniently alternated between low and high-frequency sounds without the need to turn over the chest piece Handcrafted solid stainless steel chest piece for superior acoustics Two-in-one tube design eliminates tube rubbing noise Excellent acoustic seal and comfortable fit with the soft sealing ear tips Overall length 27 Inch