The SafeSea EPIRB1 Pro operates in the 406MHz satellite band. This band comprises the international distress frequencies that are constantly monitored by Cospas-Sarsat, the international search and rescue satellite operator, ensuring a rapid response when a signal is received, no matter where it is in the world. As the worlds most compact Emergency Position Indicating Radio Beacon or EPIRB, the EPIRB1 Pro pairs its compact stature with a durable design, making it a practical option to meet the needs of all commercial, fishing, and leisure vessels. The product has been designed for maximum efficiency and boasts a 10 year battery life in addition to superb operating life when activated, keeping rescue services updated with your location for longer. This EPIRB is fitted with a 121.5MHz homing beacon used by rescue services for close-in location of vessels in distress. In addition, the EPIRB is fitted with a high brightness LED strobe light for additional impact, especially at night.