While out sailing, safety is our number one concern. This is one product that we hope to never need. We bought this EPIRB and it is attached to the bulkhead right next to our companion way. It has GPS location built right in, if it gets wet or we manually push the emergency button it will send our signal out to the Coast Guard and they will come rescue us. We also got these LED Life Jacket Emergency Signals to strap to our life vests incase any of us go into the water. Again, we hope to never need them, but I am sure glad they’re there.