The impact of the COVID19 epidemic in the past two years has prompted countries to rapidly promote the establishment of telemedicine. Home medical equipment was created to complement the limited physical outpatient services of telemedicine, such as oximeters, blood pressure machines, stethoscopes, etc. Hulu Innovations is dedicated to the detection of human physiological indicators, disease diagnosis and health management through smartphones and wearable technology. This time, we choose to use Realtek Bluetooth RTL8762CJF single-chip solution to develop the latest product "Stemoscope", which is a digital fetal heartbeat monitor and stethoscope that can not only listen to the sound of human heartbeat, but also monitor the health condition of pets.