I have had a hearing problem since when I can remember. I purchased this almost 4 years ago right out of nursing school. I will admit it picks up every lung, heart, and abdominal sound and it truly is amplified. Everyone is amazed at what they hear when they try my stethoscope. One problem I have encountered from the beginning is noise interference. Because the tube between the ear pieces and the bell is so long it allows for more noise interference which you do pick up during auscultation... very sensitive. That is the only down fall. It is time for me to purchase another scope because unfortunately the rubber has torn. I will not be purchasing another e-scope, but it definitely served its purchase.