Listen to music while swimming? Yes, you can! The Finis Neptune is an award winning waterproof MP3 player. Instead of earbuds which can be a problem for swimmers, Neptune uses an innovative Bone Conduction technology to transmit the music though the cheekbone into your inner ear for a clear sound. WIth 4GB of storage, you can download audiobooks and plenty of music to keep you entertained during your aquatic workout. How cool is that?!