3M Littmann Stethoscope, Master Cardiology, Black Tube, Black Chestpiece, 27 inch, 2161
- Outstanding acoustics: The highest in Littmann mechanical stethoscopes..
- 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..
- Headset is easily adjusted for individual fit and comfort. Angled eartubes align with ear canals..