An EPIRB, or Emergency Position Indicating Radio Beacon, is a safety device used in maritime environments. It is designed to transmit a distress signal to search and rescue services when activated. EPIRBs are crucial for boaters, as they can help locate individuals in emergencies, such as capsizing or sinking. These devices operate on satellite systems, like COSPAS-SARSAT, which relay the distress signal to rescue coordination centers. EPIRBs are typically waterproof and buoyant, ensuring they remain functional in harsh conditions. They are essential for enhancing safety at sea and are often required on commercial vessels.