Fishdrum

Fishdrums are aquatic plugs equipped with a plastic membrane that allows the user to protect themselves from water in the ear canal without giving up the sense of hearing, opposed to what conventional plugs do.

They work passively, without the need for an energy source and they differ from the rest of the plugs of the same genre on the market because they do not use any technical material to carry out this function, simply the vibration of a reused plastic sheet.