The H2O Audio Interval Underwater Apple Watch Earbuds allow swimmers to listen to music beneath the surface. They feature an ergonomic shape that promotes proper alignment and fit. Also, they provide less drag in the water. They easily integrate into goggle loops to make them easy to attach and remove. In fact, with a choice of five ear tip sizes, they offer a custom fit for you. The H2O Audio Interval headphones provide premium sound quality with plenty of bass. Therefore, you can listen to your favorite bass-boosting songs as you swim. These underwater Apple Watch earbuds also use Surge waterproof neodymium drivers to deliver plenty of volume without any distortion. Overall, the combination of these features allows you to stay motivated and entertained as you swim.