Listen to music and enjoy your favorite water sports at the same time with the Aftershokz Xtrainerz Waterproof Bone-Conducting Headphones. Designed for lovers of music and sports, this device leaves your ears open so you can hear the sounds around you. By delivering sound vibrations to your inner ear via your cheekbones, the Aftershokz Xtrainerz headphones allow you to hear surrounding noises. Likewise, they increase your environmental awareness so you can easily use them in many different scenarios, such as while commuting. Moreover, the Xtrainerz has an IP68 water resistance rating, enabling it to withstand sweat and dust. In fact, you can even submerge them completely in fresh or salt water. Furthermore, the waterproof bone-conducting headphones can hold an average of 1,000 songs with its built-in 4GB storage.