Littmann Core Digital Stethoscope, 27" L, Black, Latex-Free, Soft-Sealing Eartips. - Connects to Eko software to visualize and share heart sound waveforms. - Up to 40x amplification (at peak frequency, vs. analog mode). - Active noise cancellation reduces unwanted background sounds. - Toggle between analog and amplified listening modes. - Tunable, dual-sided stainless steel chest piece with open or closed bell. - Designed for use with adult and pediatric patients.