A real working, traditional style stethoscope of conventional design allowing students to learn about the function of the lungs, heart, monitor heart rates and measure the effects of exercise. * Working stethoscope * Conventional design * Listen to lung and heart functions * Monitor heart rates * Measure the effects of exercise https://elecena.pl/product/27205764/rapid-working-stethoscope 2024-11-10 https://elecena.pl/product/27205764/rapid-working-stethoscope 2025-09-13