Meet the Nautilus Lifeline Marine Rescue GPS, a remarkable safety device thats incredibly compact, measuring less than half the size of the original rescue radio. This cutting-edge tool enables you to send your GPS position to vessels up to 34 miles away, utilizing advanced AIS and DSC technology. Forget about MMSI or complicated registrationsthis device is as straightforward as it gets! Designed for ease of use, simply unlatch the device, turn it on, remove the red distress cap, and press the red button. Your precise GPS location, accurate to 1.5 meters, and a man overboard distress signal will be transmitted to all AIS-equipped ships and your own marine radio. With a depth rating of 425 feet, it's an essential companion for divers and boaters alike. Built to endure, the Nautilus Lifeline floats and remains waterproof across all sea conditions. Just ensure the O-ring stays clean, and this resilient device will be your reliable partner for the next five years. Don't take chances on your safety; equip yourself with a tool that wont let you down when you need it the most.