Attached at the opposite end of the tube is an acoustic driver - a vibrating diaphragm similar to a loudspeaker, but sturdier and more powerful. As the diaphragm vibrates, gas atoms pressurized to 20 ...
Our unique patented ERKA dual diaphragm enhances the acoustics of the ERKA stethoscopes CARDIOLOGY significantly, thus ensuring an unmatched sound precision. The point of reference for the physicians.
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