---
product_id: 265333398
title: "FINIS Duo Underwater MP3 Player, Bone Conduction Audio, Waterproof Swim Headphones, 4GB Storage, MP3/WMA Compatible, 7 Hr Battery, Black/Acid Green"
brand: "finis"
price: "€ 134.00"
currency: EUR
in_stock: true
url: https://www.desertcart.fi/products/265333398-finis-duo-underwater-mp3-player-bone-conduction-audio-waterproof-swim
store_origin: FI
region: Finland
---

# Bone conduction tech for crystal-clear underwater sound IPX8 waterproof up to 3m for 30 mins, perfect swim companion 4GB storage holds up to 1000 songs or 60 hours playback FINIS Duo Underwater MP3 Player, Bone Conduction Audio, Waterproof Swim Headphones, 4GB Storage, MP3/WMA Compatible, 7 Hr Battery, Black/Acid Green

**Brand:** finis
**Price:** € 134.00
**Availability:** ✅ In Stock

## Summary

> 💦 Dive Deep, Listen Loud: The Future of Swim Audio is Here!

## Quick Answers

- **What is this?** FINIS Duo Underwater MP3 Player, Bone Conduction Audio, Waterproof Swim Headphones, 4GB Storage, MP3/WMA Compatible, 7 Hr Battery, Black/Acid Green by finis
- **How much does it cost?** € 134.00 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/265333398-finis-duo-underwater-mp3-player-bone-conduction-audio-waterproof-swim)

## Best For

- finis enthusiasts

## Why This Product

- Trusted finis brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Massive 4GB Storage Capacity:** Carry your entire swim playlist, podcasts, and audiobooks effortlessly.
- • **Streamlined Waterproof Design:** IPX8 rated to withstand deep dives and intense swim sessions without skipping a beat.
- • **Integrated Clip for Secure Fit:** Attaches easily to goggles, resting comfortably on your cheekbones for distraction-free listening.
- • **Seamless MP3 & WMA Compatibility:** Plug and play with iTunes and most audio formats for ultimate convenience.
- • **Revolutionary Bone Conduction Audio:** Experience music like never before—no earbuds, no water interference.

## Overview

The FINIS Duo is a cutting-edge underwater MP3 player featuring bone conduction technology that delivers clear audio without earbuds. With 4GB of storage, it holds up to 1000 songs or 60 hours of playback, supporting MP3 and WMA formats compatible with iTunes. Its IPX8 waterproof rating ensures reliable performance up to 3 meters underwater for 30 minutes. Designed with an integrated clip for a secure, comfortable fit on your goggles, this device is the ultimate audio companion for swimmers seeking a seamless, immersive experience.

## Description

Duo Underwater MP3 Player, Bone Conduction Audio, Waterproof Swim Headphones, 4GB Storage, MP3/WMA Compatible, 7 Hr Battery, Black/Acid Green

## Features

- 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 to 3 meters and 30 minutes sound is clearest when submerged in water.Please refer user manual attached below for instructions and troubleshooting steps.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Color | Black/Acid Green |
| Size | One Size |
| Style | MP3 Player |
| Compatible with | Laptops |
| Display Size | 1.77 |
| Display Type | LCD |
| Height | 2 inches |
| Length | 0 inches |
| Weight | 0.22 Grams |
| Width | 5 inches |
| Material Type | Other |
| Number of Items | 1 |
| Number of Pieces | 1 |
| Power Source | Battery Powered |
| Season | continuity 2016 |
| Features | Fast Charging |
| Usage | swimming |
| Sport | Swimming |
| Included Components | FINIS Duo™ Underwater Bone Conduction MP3 Player |
| Batteries Included? | Yes |
| Description Pile | Lithium-Ion |
| Brand | FINIS |
| Department | unisex-adult |
| Manufacturer | Finis |
| Item model number | 1.30.058.244 |
| Product Dimensions | 6 x 15 x 22 cm; 141 g |
| ASIN | B0169RSNPG |

## Product Details

- **Brand:** FINIS
- **Model name:** Duo Underwater
- **Special features:** Fast Charging
- **Connectivity technology:** Wired
- **Memory storage capacity:** 4096 MB

## Images

![FINIS Duo Underwater MP3 Player, Bone Conduction Audio, Waterproof Swim Headphones, 4GB Storage, MP3/WMA Compatible, 7 Hr Battery, Black/Acid Green - Image 1](https://m.media-amazon.com/images/I/71-DChqjJaL.jpg)

## Available Options

This product comes in different **Color** options.

## Questions & Answers

**Q: How do i know if this is the latest, greatest version available?  i know finis has updated it because older models had issues.**
A: The short answer is this one is the latest version.  Saying that I prefer the previous version (LED screen which allowed with to look at song titles/order, better volume control, smaller speakers attached to your goggles etc...)  design much better.  Saying that, I had 2 of them and both only lasted about 1 year.  Hopefully, this design will be better.

**Q: how do I ensure that random is not switched on? I listen to audio books and am struggling to keep it playing in order.**
A: My songs play in the order in which they were loaded....alphabetical.  I know my playlist ahead of time so I can keep track of my time without having to count laps.  I'm always afraid that I'll do something to put it in random mode, but so far, so good.  I think that you can probably look it up online.

**Q: How does the duo compare to the Neptune. Neptune stops taking a charge after a couple of months use. Thanx.**
A: I had 2 neptunes and they both broke in about 1 year.  I liked the design of the neptune much better but hope this new design lasts at least a couple of years (I have a blue/white generation 1 swimp3 that still works).

**Q: Do you think they would work clipped on to sunglasses if I wanted to use them out of the water?**
A: The short answer is yes.  But they work much better under the water.  They  are not ear buds.  I use them while I'm in the water but the sound is much fuller under water.

## Frequently Bought Together

- FINIS Duo - Underwater MP3 Player - Waterproof Bone Conduction Swimming Headphones for the Pool - Great Addition to Pool and Swimming Accessories - Supports MP3 and WMA files
- Speedo Unisex Ear Plugs for Swimming Waterproof Reusable Training
- Aegend Swim Goggles, Swimming Goggles No Leaking Full Protection Adult Men Women Youth

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**Shop now:** [https://www.desertcart.fi/products/265333398-finis-duo-underwater-mp3-player-bone-conduction-audio-waterproof-swim](https://www.desertcart.fi/products/265333398-finis-duo-underwater-mp3-player-bone-conduction-audio-waterproof-swim)

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-02-05*