Transom remotes. Had one in the Mojo and maybe used it thrice in the 5 yrs I owned it, mainly to show people the feature on the new boat. Haven't used it yet on the Supra. I see more utility in the wrist remote, if your surfing you can change your tunes and adj volume. Not to say some may find it useful, don't mean to deter you, but I would suggest consider an Apple watch or android watch, depending on your phone and you can control stuff from your wrist while surfing. The bluetooth does reach, I know because that's what my in-law uses. You prolly stream your music from your phone anyways. Just a thought.