The Sharkstopper device claims it will make you sound like one of a sharks few predators, the orca (or killer whale) and is a brand new invention seeking funding on crowdfunding site Kickstarter
(If you missed the recent video of a pool of orcas taking down a tiger shark then check out the video at the bottom of this story. You can see why they might be scared)
The Personal Shark Repellent (PSR) works by emitting an orca type noise which has reportedly been shown to drive off various species of sharks including, but not limited to, great white, bull, tiger, hammerhead, black tip, lemon, nurse, sand and Caribbean reef sharks.
The ankle worn contraption, which only operates once water touches the sensor, is also devised to only repel sharks and not other marine life. The team behind the PSR have even created a commercial version designed for the fishing industry which will deter the sharks from attacking the struggling smaller prey already in the net and also keep them from getting tangled up themselves.
If you want to grab one from the kickstarter then be quick as only a few days remain. Prices start at US$225 (£139/€177). With the retail price after the campaign set at US$475 (£292/€374)
Think you are safe living in the UK? Here is a really interesting list of all reported shark incidents since 1845 (including some in aquariums, which I think we can safely discount when it comes to surfing) www.sharkfacts.hubpages.com/hub/Shark-Attacks-in-British-Waters
To find out more about the campaign visit the Kickstarter or visit the SharkStopper site.