S3 grade 3 heart sound:49 dB(A)1
The flutter of hummingbird wings: 51 dB(A)2
NEW 3M™ LITTMANN®
1Cardiac sound levels determined by assessment of expert cardiologist
using 3M™ Littmann® Cardiology IV™ Stethoscope.
2Nature sound levels derived from public sources.
A 3M™ Littmann® Stethoscope distinguishes you as a dedicated medical professional, committed to achieving the best patient outcomes.