This is a pretty cool idea. Lots of drownings occur because people don’t wear their lifejackets, and people don’t wear their lifejackets (especially in the summer) because they’re hot and bulky. Enter the Kingii ($79), now in indigogo. It’s just a wristband with an inflatable bag and C02 canister. Hit the button, bag inflates. Lifesaving made simple!
https://www.youtube.com/watch?v=douxGAsnGfg
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