Floating keychains are common , but this is the first clock time we have ensure something like the Waterbuoy : you chain it to whatever valuable objective and , if it pass into the water , the inter-group communication will fire up a gas valve that will instantly fill a balloon up to of lifting 2.2 pounds . The water will also activate a gamey - volume LED so you may see it at Nox . Warning bill : never put in a keychain in your swimming trunks ’ pocket . Or else . [ Besportier ]
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