3M Littmann Classic II S.E.28'' Stethoscope Black With Brass Finish 2201BRS The ‘industry standard’ Classic II SE is a best-selling Littmann stethoscope due to its high quality and versatility - it features both a standard bell on one side and a floating diaphragm on the other. : 3M’s ‘Tunable Technology’ lets you easily switch from low to high frequency sounds by switching from light to firm pressure.
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