Electronic Stethoscope WISE II PET is connected via Bluetooth to store stethoscope sound (heart sound, lung sound, internal sound) in the App data folder as audio data, and temperature/oxygen saturation information measured by the Wise II pet. Store in the database. The Wise Pet Plus App can manage (load, listen, analyze, delete, save, etc.) stored data, visualize sound with DSP spectrogram, calculate and display HR (heart rate), It is converted into a bitmap (png) along with the relevant user's