Two tunable diaphragms allow the user to conveniently alternate between the low- and high-frequency sounds without turning over the chestpiece.

• Solid stainless steel chestpiece for outstanding acoustics.


• Dual-lumen design eliminates tube noise artifact from two tubes rubbing together.


• Excellent acoustic seal and comfortable fit with patented 3M™ Littmann® Snap Tight Soft-Sealing Eartips.


• Comfortably angled, anatomically correct headset.


• Patient-friendly, nonchill rim and diaphragm.


• Available in a selection of classic tube colors.


• Five-year Manufacturers warranty.