Shark Shield: Spearfishing will often attract the attention of sharks and they may even try to take your fish. Shark Shields are the only known deterrent of sharks known to man. They have been tested and proven consistently over time and, at the end of the day, they are worth the investment if they make a shark think twice about attacking.
Shark shields release an electric current which sharks are sensitive to, causing them to stay away. This current does not affect fish as they do not have the same sensitive receptors as sharks.