3M™ LITTMANN® CARDIOLOGY IV STETHOSCOPE • Lenght: 69 cm • Head Ø: 43/33 mm • 3M Code: 6155 • Colour: hunter green The 3M™ Littmann® Cardiology IV helps you to catch more of the subtle critical sounds, thanks to the improved acoustics and the new design, more versatile than ever. - better audibility of high-frequency sounds - tunable diaphragms for hearing both high and low frequency sounds without turning over the chestpiece (pressure sensitive) - adult and paediatric sides for more versatility - single-piece diaphragm, easier to attach and clean, because the surface is smooth without crevices - next generation longer-life tubing - snap tight soft-sealing eartips.