Product works very well. Read instructions first! Now that you know how to use the case you’re fine. Be very careful with the gssket grease. A pea sized drop could be too much. The grease can collect sand and ruin the waterproof seal. I have only used it in a swimming pool to make sure I am comfortable before an outdoor venture. It works fantastic.
I took video of the swim team and they turned out sharp. Easy for a coach to teach better form when they can actually see it. The sound picks up as well kinda neat.