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cam-do underwater wifi cable:
$75.00
Camdo underwater wifi cable for hero 3 or hero 4, 20\' long. Allows camera inside its dive case underwater to get its wifi signal to the surface. Used with GoPro Hero3 but CamDo indiicates it will work with a hero4 too. You will need a hero 3/4 dive box for this to attach to. The hero 3 app is no longer supported so best if you already have camera with its app downloaded.
