Skip to Primary Navigation Skip to Site Navigation Skip to Main Content All Site Map

3M™ Littmann® Classic II S.E. Teaching Stethoscope, Black and Burgundy Tube, 40 inch, 2138

UPC# 00707387232795    CAT# 2138    3M ID 70200617028     
Littmann Teaching Stethoscope photo
Littmann Teaching Stethoscope photo
Made in the USA
You can be assured that your decision to educate your students with the help of a 3M™ Littmann® Classic II S.E. Teaching Stethoscope is a smart one. As one of our best and most popular chestpieces, it’s also an ideal educational tool.


  • Dual headsets for real-time teacher-patient auscultation
  • 40-inch tube for easy movement around a patient
  • Traditional bell on one side, a diaphragm on the other
  • Pressure-based sound frequency adjustment with tunable diaphragm
Need Help?

Questions? We can help

Contact Us



Additional Benefits - Anatomically designed headset - Patented 3M™ Littmann® Snap Tight Soft-Sealing Eartips - Durable, latex-free design - 3-year warranty


ApplicationsPhysical Assessment and Diagnosis
Chestpiece FinishMachined Stainless Steel
Chestpiece TechnologyDouble Sided
Color GroupAssorted
Diaphragm Diameter1.75 Inch
Diaphragm Diameter (metric)4.4 cm
Diaphragm MaterialEpoxy/Fiberglass
Diaphragm TypeTunable Diaphragm
Eartip TypeSoft Sealing
Extra EartipsYes
Headset MaterialWide diameter aerospace alloy / Anodized aluminum
Length40 Inch
Length (Metric)102 cm
ModelClassic II S.E.
Net Weight244 g
Net Weight (Metric)244 g
Small Diaphragm Diameter1.25 Inch
Small Diaphragm Diameter (metric)32 mm
Special AdaptorsNo
Tube ColorBlack and Burgundy
Warranty Period3 years