Sea Voice Inc. develop equipment to expand the capabilities of hundreds of millions of people in the water space of the planet. We make unique full-face masks for snorkeling with a periscope and possible connection of an air-tank. We make two-way radios for swimmers, athletes, tourists, and rescuers. We make glasses with suckers for almost any masks. We develop automatic belts of controlled buoyancy and electric underwater tows with attachment to a body of a swimmer. With our equipment, the possibilities of movement, communication, the spatial orientation of swimmers reach the level of natural inhabitants of the seas and oceans.