Abertek Company's Cardiology Stethoscope are designed for better overall performance in every aspect, According to the inventor of the world's first stethoscope , French physician Rene- Theophile Hyacinth Laennec the Stethoscope's general purpose is to amplify the sound created by the vibrations of the human cardiovascular system for a physician to hear it clearly. the purpose still has not change , only the technology in maximizing the effectiveness and efficiency. Why register FDA? Any medical device that is legally in the U.S. may be exported anywhere in the world without prior FDA notification or approval. Devices that have not been approved or cleared in the U.S. must follow the export provisions of the FD&C Act. Foreign firms that manufacture medical devices and/or products that emit