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Easy Listening With a Finis Duo Underwater MP3 Player

by Josh Koop | Last Updated:   7 months ago
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I absolutely love my bone conduction headphones and wouldn’t trade them for the world, I have been searching non-stop trying to find a way to be able to swim laps while at the pool while being able to listen to music.

I love AfterShokz brand and own multiple pairs so the Xtrainerz were my preferred option, unfortunately, I didn’t have the money to drop on them at the time so instead, I went with the Finis and I have loved using them since.

Here’s a rundown of what we’ll provide in this Finis Duo Underwater MP3 Player review:

Sound good? Let’s get started!

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Features and Benefits of the Finis Duo Underwater MP3 Player

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Special Features (Pros) of the Finis Duo Underwater MP3 Player

BONE CONDUCTION AUDIO TRANSMISSION: Amazingly clear sound in the water without the use of ear buds

SUPPORTS MP3 AND WMA AUDIO FORMATS: Compatible with iTunes; listen to music, audiobooks, podcasts, and more

4GB OF STORAGE: Stores approximately up to 1000 songs or 60 hours of playback; Mac OS Users: Please empty the Trash on your computer before connecting the Duo to the USB

INTEGRATED CLIP DESIGN: Secures the device to goggle straps to rest on the cheekbones for a comfortable and streamlined fit

WATERPROOF IPX8: Up to 3 meters and 30 minutes; sound is clearest when submerged in water

Drawbacks (Cons) for the Finis Duo Underwater MP3 Player

Possible Corrosion on Connector Area – There have been a few people who reported that they lost the ability to connect to a PC due to corrosion on the connector.

Only accepts MP3 – If you are a big user of iTunes then this will not play their music natively, you will need to convert all the audio to mp3 files before being able to upload them

No Ability to Build a Playlist – You can’t order your mp3 files so you wont have any knowledge of play order, minus plausible renaming of your files to get them in a alphanumeric order.

Video: Finis Duo Underwater MP3 Player


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About the Finis Company

Founded by a team of endurance enthusiasts, Clever Training challenges athletes to push their personal limits.

Whether you’re competing in an ultra-distance triathlon, on the verge of a record-breaking climb, or training to achieve your personal best at your local race, they have the gear, advice and research you need to go beyond what you think is possible.

Based on their love for all things fitness, Clever Training was built by a passionate team of experts who have transformed a small business and local store concept to a world-class provider of high performance training gear for the active lifestyle enthusiast.

Whether you’re prepping for an elite competition or looking to navigate your way off a mountain, they’re always looking to bring you the latest and greatest training tools and innovative technologies to help achieve your goals and push yourself to new limits.

Finis Duo Underwater MP3 Player Reviews

Looking at the features and benefits is great, but taking a look at what real-and-actual customers have to say about a product offers a deeper dive of insight. Here we’ve curated reviews that reflect the Finis Duo Underwater MP3 Player, providing feedback from product users and reviewers on independent review sites as well as on Amazon.

Independent Reviews and Recommendations for the Finis Duo Underwater MP3 Player

The FINIS Duo Underwater MP3 Player definitely goes the distance, and is an extremely popular choice among customers with a series of glowing reviews.

Long distance swimmer Diana Nyad, who became the first person to swim 110 miles from Cuba to Florida without a shark cage, is one of many to use the FINIS Duo in the water.

Read More…

The reason this is so freakin’ awesome is that you don’t have to worry about positioning ear-buds into your ear, and you don’t have to stress about them jarring loose and the music sounding like it’s coming from the bottom of a tin can.

Read More…

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What Amazon Customers Have to Say About the Finis Duo Underwater MP3 Player

Once you figure out how to add this to your swim protocol, you will love it. It’s different. Nothing goes in your ears. You must position the flat surfaces of the unit over your cheekbones. So you must attach either side to your goggle straps.

But you must be able to do so without creating a gap between the goggle and your face, or you get leakage..so be sure that your goggles will allow this. I had to switch goggles because of how my goggles’ straps fastened to my goggles. If you can get the finis duo on your goggle straps AND have a snug fit on your goggles, you are gold.


i’m 57 years old and swim daily. I have used several products but so far and I’ve only been swimming with them for about 10 days, this product is super cool. It sounds like a stereo underwater. The miles seem to just fly by.


This is the fourth Finis MP3 player I’ve purchased. I have enjoyed them all, but I appreciate that they keep getting better. I have used the duo five times now, and really love it.

The duo is the easiest to mount on my goggles, and fits everything into the speakers so there is no third element to bother with. The speakers fit tight even when I don’t wear a cap.

They are much easier to put on, wear, and take off. I love the shuffle feature. The charging system seems much improved. The sound is great, and I hear clearly on a low volume. The duo really makes swimming more fun.


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Final Thoughts on the Finis Duo Underwater MP3 Player

While there are few options available overall on the market that are both bone conduction and waterproof for swimming these have been excellent performers.

I would suggest these are very worthwhile and the only reason I would move to the Xtrainerz is the chance to have a simple over the ear, simple to wear, pair of headphones for swimming.

Compare With Other Amazon Waterproof Bone Conduction Headphones

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