I’m curious as well! I might not be heading as deep as I’d like, but, I should give the bag a run for its money this summer, tucked under my wet suit, with the magnetic clip holding it in position, with the wet suit keeping it tight against my chest. The mic definitely picks up sound well, and I can adjust the sensitivity a bit if needed. The camera easily picks up bubbles from my reg, so, I suspect the pickup will be fine. I mostly just want to test being able to use it down deep in the water.Thanks for the purchase! I'm really curious how the recording is through the bag, please update us when you get a chance to use it!