The 3M™ Littmann® Cardiology IV™ Stethoscope is designed for clinicians who require outstanding acoustic performance combined with exceptional versatility. Its innovative design provides a single-piece tunable diaphragm on each side of the chestpiece.

• Excellent acoustics with better listening to high-frequency sounds (adult side, steady pressure). 
• Dual-frequency diaphragm: Hear high or low-frequency sounds by slightly adjusting the pressure on the bell. 
• Dual-lumen tubing: The ability of two sound paths in one tube eliminates the friction noise of traditional double tubes.
• The seven-year warranty gives you greater confidence in your stethoscope.