Swimbuds Flex Waterproof Headphones

Swimbuds Flex Waterproof Headphones

Rated 5.00 out of 5 based on 3 customer ratings
(4 customer reviews)


One size truly fits all with memory wire headphones that bend to fit you! Flex Headphones offer the ultimate in comfort with its customizable fit and wide variety of earbud styles and sizes. Simply form the cord to your desired shape and it stays that way until you bend it to a new one.

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  • Description
  • Reviews (4)
    Reviews (4)

Product Description

Bends to Your Individual Needs

Memory wire and headphones are an obvious match. Add the functionality of being completely waterproof and there’s nothing stopping you from enjoying a great swim, run, wave, or other adventure.

Favorite Features

  • Long cords are a swimmer’s nightmare. The Flex headphones come with a short, 17-inch cord which, when plugged in to a music player attached to goggles or a swim cap, reduces drag and increases security. A 3.25-foot extension cord is also provided.
  • Designed to withstand depths of up to 3 meters*, for as long as you care to keep them under water. These headphones exceed the IPX8 waterproof standard.
  • Flex Headphones come with no cardboard packaging! Our reusable case means less waste, less frustration, and less time involved in unwrapping your new headphones and getting them into the water.
  • The gold-plated standard 3.5mm jack is compatible with iPods and most other music players.
  • The Flex Headphones come with a 1-year warranty


Like the Swimbuds Sport and Hydroactive headphones, the Flex come with a wide variety of earbuds to take on any activity:

  • Tree earbuds go deep into the ear canal to provide a firm watertight seal. They block out sound completely, and are perfect for swimming laps in noisy public pools. With 3 different sizes, these earbuds work best for most swimmers.
  • Fin earbuds provide a flexible and comfortable watertight seal. They do not enter the ear canal as deep as the trees. With 3 different sizes, these earbuds fit a range of ear sizes and work for some when nothing else does.
  • Ergos fit on the outer part of the ear and do not enter the ear canal. With 4 different sizes, they provide a personalized fit that enables you to still hear your surroundings.
  • Mushroom earbuds are designed for casual use. They do not provide a watertight seal while underwater. They are well suited for everyday wear and for all of your favorite land sports.

What you get:

  • One pair of Waterproof Short Cord Flex Headphones
  • 1 FREE 3.25 foot Waterproof Audio Extension Cord (black)
  • 4 types of eartips: 1 pair or round eartips for comfort. 3 sizes of tree eartips for swimming, 3 different sizes of fin eartips for water activities, and 4 different sizes of the ergo eartips for running and biking.
  • 1 Flex Headphone case

* For safety reasons, these and all underwater earphones that create a tight seal should not be used below 10 feet.

Specs and Info: 

  • Short Cord Length: 17inch (43cm)
  • Extension cord length: 3.25ft (1m)
  • Plug: 3.5mm gold-plated
  • Earbud Style: In-ear
  • Driver unit: Φ 9mm, 6u
  • Speaker impedance: 32ohms ±15%
  • Speaker sensitivity: 113dB ± 4dB/mW (at 1KHz)
  • Speaker frequency: 20-20,000 Hz
  • Maximum input power: 20mW
  • Color: Black
  • Compliant with IPX8 waterproof standard

This purchase does not include an Underwater Audio waterproof iPod.

4 reviews for Swimbuds Flex Waterproof Headphones

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  1. Deborah Moltisanti

    I love my waterproof iPod! I listen to audiobooks while I swim laps. Makes the time go by quickly. Underwater Audio’s customer service is superior. *Update: Five years later. Just bought my 2nd iPod Shuffle from Underwater Audio. Original is still going strong, but I wanted to have a back up. I also want to shout out the new Flex headphones. The fins do an even better job of keeping water out of my ears!

  2. Rated 5 out of 5


    I’ve been buying headphones from UA for years, and was excited to see this new option. They are more costly than some of the other options from UA but the cost is worth it. I love being able to actually shape the headphones to my head. Usually I have to remove all of the rigid support because I have a smaller ear/head than the standard adult headphones use, which results in discomfort. But with these, no pain and good fit. The shape really does stay ensuring they are quick to get on each time. The range of tips makes it easy to find one, or more, that you will like.

  3. Rated 5 out of 5

    Pierre Leroux

    Excellent at first try. Fits perfectly. Very comfortable to insert and remove. No water intrusion. By far, the best waterproof headphones ever tried. And I tried a lot of different waterproof headphones. The sound lacks a little bit of high pitched sounds but I guess it’s the price to pay to get a flawless music experience all along swim sessions. Congratulations to the makers, it’s not easy at all to create efficient earbuds for swimmers.

  4. Rated 5 out of 5


    I’ve tried lots of different makes of waterproof headphones over the years, none of which have ever stayed in my very oddly-shaped right ear! This pair fitted me perfectly, with no pain and they have never fallen out. They are brilliant!