Abstract: A stethoscope and headset system comprising a stethoscope having a monitor mechanism for monitoring internal bodily vibrations of a patient and conversion circuitry coupled to the monitor mechanism for receiving the internal bodily vibrations and transmitting internal bodily indication signals based upon the internal bodily vibrations, a headset having a headband, a pair of earpieces coupled to the headband, a microphone for receiving a user's voice and transmitting a plurality of intercom signals; and a pair of speakers with each speaker coupled to an earpiece for transmitting audible sounds upon actuation by internal bodily indication signals and intercom signals; and a user-orientable selector switch coupled with the stethoscope and headset and coupleable with an intercom system of an aircraft, the selector switch having one orientation for enabling a user to listen to a patient's internal bodily vibrations and another orientation for enabling a user to communicate through the intercom system.