3M™ Littmann® Cardiology IV™ Stethoscope

Outstanding acoustics with better audibility of high-frequency sounds (adult side, firm pressure).
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 Cardiology IV stethoscope’s advanced features help you achieve more.

Better audibility of high-frequency sounds* helps you learn more about your patient’s condition.
Single-piece tunable diaphragms let you hear high and low frequency sounds on both the adult and pediatric sides of the chestpiece.
Pediatric side converts to an open bell. Just remove the single-piece diaphragm and replace it with a non-chill rim.
Open bell stays clear of dirt and debris by covering it with the small diaphragm.

Dual-lumen tubing combines two sound paths in one tube, eliminating the rubbing noise of traditional double tubes.
Not made with natural rubber latex or phthalate plasticizers, next-generation
tubing lasts longer with improved resistance to skin oils and alcohol and is less likely to pick up stains.
Seven-year warranty.