Uncover the secrets of underwater audio! We dive deep to find the best way to listen to music underwater. From custom professional underwater speakers made by local expert Renzo at Synchrosound, to popular bone conduction headphones like the Shockz Openswim Pros, and even cheap waterproof Bluetooth speakers from Amazon (Monster S620), we test them all in the swimming pool. Learn about the physics of sound underwater, why high frequencies disappear, and how bone conduction works. Find out which hydroacoustic solution truly makes a splash for swimming laps and underwater workouts! Don't miss our tech tips for underwater music!