I have never, even in my student days 35 years ago, heard breath and heart sounds as clearly as I can now. The Steth IO is the stethoscope I will recommend in future to everybody, and if any Doctor is suffering with any hearing loss (be honest now....), then the Steth IO is a must have. Thank you to Steth IO, for giving me back my hearing and hopefully with time, greater objectivity in my examination as I get acquainted with the software and the visuals. Not to mention recordings in order to compare for subtle changes, particularly with chronic lung diseases.