Eko CORE Digital Sthethoscope 2 types

Eko Core and Eko Duo Digital Sthetoscope - 2 types. First type - Includes cardiological grade sthetoscope with bell, adult and pediatric diaphragms. Amplify up to 40 times with active noise cancellation. 3 types of soft seal ear tips. Second type - contact microphone box plus Sthetoscope. For more info https://www.ekohealth.com and respective phone apps. Tested few times, but never really used.