Very cool concept. As a former Marine Biologist and now Sci-Fi writer, The CudaJet blends the best of both worlds for me.

One thing I’m particularly curious about is the noise factor. Depending on the decibel level, it could be more than just a minor distraction—it could interfere significantly with both diver awareness and marine life communication. As a free diver (which is what these videos appear to show), hearing is not just important—it’s essential. Unlike scuba divers, we aren’t tethered to surface buoys or dive flags, so boaters often have no idea we’re in the water. Our ears become our first line of defense. Hearing the distant hum of an engine alerts us to danger before we even think about surfacing. Interference with that ability—especially if the device introduces even subtle continuous noise—could compromise safety. At the same time, underwater acoustics are everything for marine life.

Many species—dolphins, whales, fish, even shrimp—depend on a clear soundscape (Biophony) for navigation, communication, hunting, and mating. Introducing novel sounds into their environment, especially if sustained or within sensitive frequency ranges, can have unintended ecological consequences. I’d love to know more about how those issues were taken into consideration by the developers; something that I think would help in their marketing if they show an sincere interest in it.

The intersection of tech and the underwater world has so much potential and hats off to the developers—but it’s also a sound-sensitive space, in more ways than one. As an aside, I’d love to try one of these to see for myself, but as an experienced diver, I’d want fins on–– for you might just fid yourself far away from your set point and a long swim against currents in the event of an outage.Show less