# Earbud-Embedded Micro-Power mm-Sized Optical Sensor for Accurate Heart Beat Monitoring

> Research article (IEEE Sensors Journal, 2021) · cited 19× · AI/ML

**Wikidata**: [openalex:W3185724218](https://www.wikidata.org/wiki/openalex:W3185724218)  
**Source**: https://4ort.xyz/entity/earbud-embedded-micro-power-mm-sized-optical-sensor-for-accurate-heart-beat-monitoring