Here is a wireless bone conduction headset that lets you listen to podcast programs, audio coaching, and everything in between while spending time in the pool. The Zygo underwater headset combines with a transmitter and charging case to get the job done. The transmitter stays on land with your phone and streams audio to the headset. It doubles as a walkie-talkie.
Zygo has a range of 50 meters at 2 feet below the surface in a swimming pool. Above the water, the range is about half a mile. The Zygo app comes with pre-recorded workouts. You can use these earbuds for kitesurfing, surfing, sailing, triathlon, and other fun water sports. Expected to ship in August.