3M™ Littmann® CORE Digital Stethoscope, engineered for impressive acoustics and clarity. It has amplification of up to 40x at peak human-body frequencies and active noise reduction to significantly improve diagnostic detection. The soft-sealing ear-tips ensures optimal comfort and fit, and tunable diaphragms conveniently shift between high-frequency and low-frequency sounds. The CORE Digital Stethoscope works with Eko software and provides live heart sound waveforms.