The Finis Neptune MP3 Player and Arena Swimming MP3 Pro Player both provide you with hours of playback while swimming your laps. They allow you to listen to your favorite music while in the water with a waterproof MP3 player.
Swimming stop watches are great for not only swim coaches, but also parents. Features include 100 Split Memory, lap counters, and swim stroke rate. The Accusplit stopwatch is a must for any hard core swim coach.