Immersive Performance Beyond Limits

H2O Audio delivers an unstoppable audio experience with innovative sound clarity, secure fit, and advanced bone conduction technology.

Our IPX8-rated headphones provide immersive and uninterrupted music, empowering you to go beyond boundaries in any environment.

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Tech Specs


Waterproof – Dive into the BEYOND with our 100% waterproof technology to 12 feet (3.6 meters) for an unlimited amount of time.

Battery Life

Battery Life – 5 hour battery life ensures you keep rocking even for your longest runs, rides, gym sessions, or water excursions.


Bluetooth – Cut the cords and amplify your freedom with our earphones' seamless connection to whatever device you use.

MP3 Player

MP3 Player – Never miss a beat on your adventures with our earphones' built-in MP3 player boasting a generous 8GB of memory.


Multi-Sport - Engineered to keep up with your active lifestyle, whether you're swimming, cycling, running, paddling, or hitting the slopes.

Open Ear

Open Ear – Stay connected to your surroundings while indulging in crystal-clear sound.

Superior Sound

Superior Sound – Get ready to experience your favorite tunes like never before, with bass that's proudly amplified for maximum impact.

H2O Audio App

With the new H2O Audio app, you can manage all your music, update your software, create folders, add songs to your Playlist+ and more. The app is free and available for both Apple and Android.

Customer Reviews

Based on 10 reviews
Jenn Dawkins
Love this

Love it - only reason not 5 stars is because it requires some tech savvy skills and I struggle!

Konstantina Diamantidi
Love my h2o

The sound is strong and much better than I ever experienced with other waterproof mp3 players. I can really listen to audio books and not loose a word even when the sea got waves, that's a first ! So I'm very happy with my sonar pro and surely recommend it to all swimmers around the world!

Péter Lengyel
A most have piece if you are a swimmer

I love it!

Nagy Ádám

It is a perfect tool for swimmimg

Lorraine Unruh
Pairing difficulties

I have an iPhone 11 . I am unable to pair it with the sonar pro. I is completely charged, my phone is in Bluetooth mode . I have other devices paired ( ear pods and a speaker) but I cannot pair sonar pro. I have tried to pair it with my laptop which tuns on windows 10 , unable to pair it to my laptop.