Electronic Stethoscope, is a digital smart stethoscope featured with powerful sound amplification and effective frictional noise cancellation, which enables healthcare professionals to hear heart and lung sounds with great clarity. Electronic Stethoscope can be paired with a free app to see the phonocardiogram in real-time and record auscultation signal data for future playback. The data will be securely saved and only shared for non-commercial purpose. Without any off-the-shelf software, the Smartho-D2 incorporates an embedded software which controls all features of the product, including sound capture, digital signal processing, volume control, OLED display and Bluetooth function. With its smart hardware, cloud storage and live stream, can be used in telemedicine, education, research and electronic medical records (EMR) for cardiopulmonary diseases and physical assessment.