I saw this on Yahoo! News – Photos Reveal Mark Zuckerberg Surfing with Anti-Shark Device https://www.yahoo.com/news/photos-reveal-mark-zuckerberg-surfing-183602242.html. It’s questionable if this device works as reports back in 2015 indicate it doesn’t work. Longer article, but here’s enough of the basics as to why I would not trust it. Best and safest way to test it out is to use a manmade dummy or mannequin to see if it works in real life.
By Business Insider Grace Kay May 28, 2021
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Facebook CEO Mark Zuckerberg was spotted wearing a bracelet designed to protect against shark attacks while surfing on Thursday.
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Earlier this month, Zuckerberg posted a video on the surfboard. In the video he appears to be wearing the bracelet.
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https://www.yahoo.com/news/photos-reveal-mark-zuckerberg-surfing-183602242.html