Pros: ease of pairing, ability to magnify audio signals well, able to use the attachment with my Tycos stethoscope head for good audio quality, and relatively sterile (putting my Core attachment and stethoscope head in a disposable ziplock bag). Cons: The recorded heart sounds are very soft most of the time - you can turn up the volume to hear it better, but won't change the recorded volume. And sharing the audio files through the dashboard makes them almost inaudible. Hoping for the following improvements: The recorded volume can be better. In this age where medical students may not be able to do hands-on examination, if there is a way to record and share these audio clips for teaching, it will make this even more useful.