Im a Happy Camper for this seller. These are sturdy. the reason why i always buy myself a crocs. Size is correct however. 4 GHz and 5 GHz spectrum so this can result in random connectivity issues even under ideal situations. - Plug in the base via Micro USB port on left side with the included cord, peel the contact-protector strips from each earbud, place them into the base. What great performance coming from such a small speaker. But the quality of the backup camera works well, along with the Apple CarPlay. If you are not comfortable with altering and drilling holes in your boat and making electrical connections / splices I would suggest you have the winch installed by someone who is. Espectaculares!