in partnership with two times World Champion surfer Tom Carroll specifically designed for surfers. The new design removed the trailing antenna of the older SURF7 being replaced with a sticker-thin antenna on the underside of the surfboard, with the fully transferable power module located in the kicker of the tail pad. In January 2019 the company announced the world's first handheld electrical shark deterrent based on Shark Shield Technology called the eSPEAR. The eSPEAR is designed primarily for spearfishermen, divers and snorkelers. The Ocean Guardian product line was further expanded to include the BOAT01 to create a safe swimming area around vessels, and the FISH01 to assist ocean fishermen land their catch without being taken by sharks. On May 26, 2017 the Western Australian government implemented a $200 consumer rebate for scientifically proven electrical shark deterrents. The Ocean Guardian FREEDOM7 and FREEDOM+ Surf are the only products approved. In addition to traditional ocean sports, Ocean Guardian products are in use with various government bodies including police and navies, and were used by production members in the filming of both The Shallows and USS Indianapolis: Men of Courage. Long-distance swimmer, Diana Nyad, in her record-breaking swim crossing from Cuba to Florida without a cage, was completed with help from Shark Shield. Functionality All chondrichthyans have highly sensitive electrical receptors called the "ampullae of Lorenzini" located in their snouts. These tiny gel-filled sacs sense electric current from prey at very close distances, typically less than one meter. The jelly is highly conductive and allows the electrical potential at the opening of the pore to be transferred to the ampulla. They use these short-range sensors when feeding or searching for food. They do not use electrical receptors to track animate objects over long distances; other senses such as audition and olfaction are the primary drivers. Ocean Guardian devices create an electrical field that creates an unpleasant sensation impacting the shark's ampullae of Lorenzini. When the shark comes into the range of the field, it experiences uncontrollable muscular spasms, causing it to flee the area. The field is projected from two electrodes, which create an elliptical field that surrounds the user. Both electrodes must be immersed in the water for the field to be created. Research conducted by the South African National Space Agency in 2012 estimated the Shark Shield electrical field to be about 4–5 m in diameter. While sharks are attracted to