The Smartfind S10 AIS MOB is an innovative personal safety device using the AIS automated tracking system to transmit MOB notifications including GPS coordinates to all AIS equipped vessels within a 4 mile (typical) range. Compact, waterproof to 60m, buoyant and with a powerful integral strobe light, it is ideal for anyone who wants peace of mind when working or playing on the water – boat crew, divers, personal watercraft users and more.