Snap-tight and soft-sealing for an excellent acoustic seal and comfortable fit.

To resist skin oils and alcohol, it is made without natural rubber latex or phthalate plasticizers.

Available as either a one-sided variant with tunable diaphragm, or a two-sided variant with a diaphragm on one side and a bell on the other.

Switch between hearing high- and low-frequency sounds by adjusting pressure on chestpiece.

Adjustable by squeezing or pulling apart the eartubes.

Made of an aerospace aluminum alloy for strength and lighter weight.

Eliminates the rubbing noise typically heard when using traditional twin-tubed stethoscopes (only applicable to the 3M™ Littmann® Cardiology series).

Used to index, or open, the side of the chestpiece that you wish to use.