Introducing the Ocean Guardian eSPEAR Powered by Shark Shield Technology; the world’s only scientifically proven and independently tested electrical shark deterrent technology, designed to reduce the risk of an unwanted shark encounter. The eSPEAR is primarily designed for spearfishermen who while aware of their surroundings; are wanting to protect their catch and themselves from overly inquisitive sharks. The eSPEAR provides peace of mind to enjoy your freediving, spearfishing, scuba diving or snorkeling while supporting the conservation of sharks. Small, lightweight, easy to carry and backed by 20 years of research, it offers powerful and proven shark protection. Simply attach it to your dive belt or use the optional holster and go! Sharks have short-range electrical receptors in their snouts used for finding food. Shark Shield Technology is used to create a powerful three-dimensional electrical field which causes spasms in these sensitive receptors turning sharks away. There are no known harmful effects on sharks or humans.