3M™ 6154 Littmann® Cardiology IV™ Stethoscope, Standard-Finish Chestpiece, Navy Blue Tube, Stainless Stem and Headset, 27 inch

3M^TM 6154 Littmann® Cardiology IV^TM Stethoscope, Standard-Finish Chestpiece, Navy Blue Tube, Stainless Stem and Headset, 27 inch

- Outstanding acoustics with better audibility of high-frequency sounds (adult side, firm pressure)

- Tunable diaphragm: Hear high or low frequency sounds by slightly adjusting pressure on the chestpiece

- Dual-lumen tubing: Two sound paths in one tube eliminates the rubbing noise of traditional double tubes.