Can you really jam out underwater? Linus and the team partner with Renzo from Synchrosound to test everything from his custom pro-grade hydroacoustic speakers to popular bone-conduction headphones (Shokz OpenSwim Pros) and budget waterproof Bluetooth speakers (Monster S620) in a swimming pool. You’ll see how each gadget couples sound into water, get hands-on demos of build-your-own underwater speakers, and watch side-by-side tests of audio clarity and volume.
Along the way, we dive into why high frequencies vanish underwater and how bone conduction sneaks around that problem. By the end, you’ll know which setup really makes a splash for lap swimming or pool workouts—and score some tech tips to up your underwater-audio game.
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