An Emergency Position-Indicating Radio Beacon (EPIRB) is a safety device used primarily in maritime environments. It transmits a distress signal via satellite to alert search and rescue services when activated. EPIRBs are designed to operate in harsh conditions and can be automatically activated when submerged in water. These beacons operate on specific frequencies, typically 406 MHz, and are equipped with a GPS receiver to provide precise location information. When a signal is received, it helps agencies like the Coast Guard or National Oceanic and Atmospheric Administration quickly locate and assist individuals in distress.