Review on acr ResQLink 400 SOS Personal Locator Beacon with GPS (Model: PLB-400) - Reliable and Efficient Safety Tool for Any Adventure! by Brian Krump

I can't give a single star for battery life because I just got it. It was very easy to check in online. The instruction was very easy how to use it. As far as I know it will work I did a test and passed. It's similar in size to a smaller version of old chunky phones and not super heavy, but heavier than your average phone. I would say worth the money for peace of mind. I think everyone who hits the water should have one of these. Everything can go wrong very quickly.