INTRODUCING HIGH POLISH RAINBOW The most colorful 3M™ Littmann® CORE Digital Stethoscope yet, powered with CORE® Technology by Eko™. Active noise cancellation, up to 40x amplification, telehealth-ready, wireless auscultation via Bluetooth, and connects to Eko's free app and software that allows you to visualize, record, share, live stream, and analyze heart, lung, and other body sounds. The clearest stethoscope you’ve ever heard is now the most colorful. Learn more: https://www.ekohealth.com/product/3m-littmann-core-digital-stethoscope