- Linus and Renzo dive into the world of underwater audio, testing everything from Renzo’s custom hydroacoustic speakers to bone-conduction SHOKZ OpenSwim Pros and a budget Monster S620 Bluetooth speaker. They break down the physics of sound underwater—why high frequencies fade out—and show you how each gadget performs in a real pool setting.
- If you’re after tunes while swimming laps or doing underwater workouts, this video wraps up hands-on demos, tech tips, and gear recommendations (including pro speaker builds and off-the-shelf options) to help you find the perfect splash-proof soundtrack.
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