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.
The 3M Littmann Master Cardiology Stethoscope, Brass-Finish Chestpiece 2175 is characterized by the best acoustic response in the Littmann mechanical stethoscope line; with a tunable diaphragm, dual lumen tubing, and a precision, ergonomically designed, stainless steel chestpiece.