The Dolphin is a waterproof MP3 player made by Nu Inc, which is a Taiwanese based electronics maker. They have two different underwater MP3 players: the Dolphin and the Dolphin Touch.

If you’ve ever read this site before you know that I’m a frequent swimmer. I also like to listen to music a lot.

This used to be a big problem. Bringing a Walkman in the pool: very bad idea.

Fortunately for people like me, the technology has evolved. I now frequently use MP3 Goggles. However, I understand a lot of people are pretty attached to their iPods. They don’t want to get a new player and have to load all their music on it.

I had a dilemma. I frequently swim but like to listen to music while I work out.

Of course, my digital music player and earphones were not designed to work under those conditions. If I got them wet, the only song they would be playing is the "Sound of Silence." (Ok, bad joke. I know. Back to the point.)

Waterproof headphones are specially designed to withstand water. Heavy water exposure will destroy most sets. Waterproof headphones are particularly popular with simmers.

If you swim frequently to stay in shape, good for you. It can also get boring though. Lap after lap after lap. That’s why some like to listen to some music in the pool. You’ll need a set of waterproof headphones with your waterproof music player.

Like I've said before, I swim a lot and I like to listen to music. So I frequently use MP3 goggles but those aren't for everybody. An alternative for those hoping to listen to music while swimming is waterproof MP3 players. These are digital music players designed specifically to work under water.

Typical digital music players like an iPod or Zune aren’t waterproof. They might be water-resistant and able to handle some moisture, but completely submerging them in water can completely destroy them.

MP3 sunglasses and glasses are an alternative to portable music players like the iPod. These gadgets have a portable music player actually in its frame and earbuds along each side.

One of the big advantages of MP3 Sunglasses is no dangling cords. You typically carry a regular music player in your pocket, meaning that the earphones have to snake all the way up to your ears.

A number of different manufactures make MP3 Sunglasses. The best known of these is probably Oakley, a California based high-end eyewear maker.

MP3 goggles are an excellent option for swimming. Most people like to listen to music when they work out. However, it's a bad idea to use your iPod or regular MP3 player in the pool.

Typical digital music players aren't waterproof. Water can damage them and make them useless.

Waterproof MP3 goggles are specifially made for those that like to burn some calories aquatically. If you fall in this category and like a soundtrack for your workout, read on.