AKA an EPIRB: https://en.wikipedia.org/wiki/Emergency_position-indicating_radiobeacon https://en.wikipedia.org/wiki/Emergency_position-indicating_... You can b

AKA an EPIRB: https://en.wikipedia.org/wiki/Emergency_position-indicating_radiobeacon https://en.wikipedia.org/wiki/Emergency_position-indicating_... You can buy one for a few hundred bucks, but based on everything I've read about this outfit so far, I'd be surprised if they even had that.