The CAWSS System (video) - the finest fully portable Complete Air and Water Sound System available for synchronized swimmers and divers, who insist on DEPENDABLE air and underwater sound that is LOUD and CLEAR. This remarkable system holds many patents, and carries the distinction of being the highest performance state-of-the-art system ever offered to the sport of swimming. Lubell Labs invented the Pistonic Piezoelectric Underwater Loudspeaker and holds the patent for this unrivaled high-efficiency broadband design. Not only is the design efficient, but also extremely dependable and long lasting due to its rugged PVC and stainless steel construction. Because of this remarkable engineering feat, one Lubell underwater speaker outperforms up to 50 of the competing brand's products, greatly lowering cost and simplifying installations. And due to this advantage, Lubell underwater speakers are demanded by leading professionals and organizations around the world including NASA, the Armed Forces, Olympics, Aquarius Underwater Habitat, Monterey Bay Aquarium, Bellagio, Le Reve, Sea World, Weeki Wachee Springs, Woods Hole Oceanographic Institute and others. Lubell speakers are even used in most blockbuster movies having underwater footage including Abyss, Armageddon, Flipper, Harry Potter, James Bond, Pearl Harbor and Waterworld.