**Research Firsts Exhibition: Image and accompanying text by Marija Vaskeviciute and Haobo Li** ![sketch style image of a camera mounted on a tripod next to a chart showing 5 rows of hearth beat rhythms][1] Our project first collects and investigates people’s heart sound signals through a ‘laser stethoscope’ remotely. The system involves an eye-safe green laser diode and an industrial high-speed CMOS camera. It can ‘listen’ to the human heart from a maximum distance of 2 meters. The periodicity of the retrieved heart sound matches perfectly with the ECG signal we acquire synchronously. Moreover, we could also capture and identify the heart murmurs hidden in the heart sound. The users could evaluate their heart conditions at home and get an early warning of heart diseases with the help of machine learning models. This technology could also be used as fingerprinting in biometric identification. [1]: https://mfr.osf.io/export?url=https://osf.io/download/3rfhn/?direct=&mode=render&format=2400x2400.jpeg