I work in a dialysis unit and those machines are loud when they alarm for errors. With my old stethoscope I would have a very hard time listening to my patient's lungs for any signs of fluid overloading or any heart murmurs. I even had to order 2 different stethoscope thinking my old ones are just not string enough. An doctor at work was making rounds and made me try out his Core Digital Stethoscope, total game changer. After that, I decided to get one for myself as well and had made assessing my patient so easily and clearly. I just love this.