This product has been used by me for the past year in a pediatric setting. It is amazing and I love using it. However, I want to try other stethoscopes! Still charges and lasts for days. The 3M™ Littmann® CORE Digital Stethoscope is a Cardiology IV™ Stethoscope pre-assembled with the Eko CORE™ Digital Attachment, bringing together Littmann™ tradition and prestige with Eko's innovative and forward-thinking technology. And when paired with the Eko App, the device becomes even smarter — helping you check for signs of heart disease in seconds. Analog and amplified modes give you the choice of how to listen. Up to 40x sound amplification with 7 volume levels increases confidence in what you're hearing. Active noise cancellation reduces unwanted background sounds. Tunable diaphragm fits most adult and pediatric patients. Standard Access to the Eko App, included with purchase, allows for real-time visualization, wireless listening, single sound recording, and more. Eko+ membership offers Standard Access plus murmur detection, AFib detection (CORE 500™ only), sound recording and sharing, and other advanced features. Designed for: Clinicians who perform diagnostic assessments, work in settings with background noise, or perform both in-person and virtual telehealth exams.