AfterShokz Xtrainerz Bone Conduction Headphones
AfterShokz · XTRAINERZ AS700
Made from flexible and durable titanium, this headphone is perfect for any workout that you are up for - running, diving and swimming. The Xtrainerz are completely waterproof in up to 6 feet of water depth and has a built-in 4GB internal memory for storage of up to 1,000 songs. You can even listen to music underwater while leaving your phone safely in the locker.