An MOB device designed to be lifejacket mounted. It uses the AIS automated tracking system to transmit MOB notifications to any AIS equipped vessels within a 4 mile (typical) range). The powerful inbuilt GPS rapidly pinpoints and transmits your location, enabling the crew on your vessel to find you quickly and easily, while its integral strobe light helps them spot you in the water.  It is ideal for anyone who wants peace of mind when at sea.