Linus and the team dive into the world of underwater audio with local expert Renzo from Synchrosound, testing everything from custom pro-grade transducers to bone-conduction headphones (SHOKZ OpenSwim Pro) and budget waterproof Bluetooth speakers (Monster S620). Along the way they explain why high frequencies disappear underwater and how bone conduction lets you jam beneath the surface.
After poolside sound tests and a deep dive into hydroacoustics, they reveal the best setups for lap swimmers and underwater workouts. Whether you’re on a shoestring budget or chasing audiophile-level clarity, you’ll get practical tips to make your next swim playlist truly immersive.
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