H2O SYNC (Beta)
Music & Podcasts.
Built for the water.
H2O Sync finds, downloads, and syncs music & podcasts directly to your H2O Audio headphones — no drag-and-drop, no iTunes, no confusion.
What it does
Everything your headphones need. Nothing they don't.
A desktop app that handles the full cycle — finding music, downloading it safely, and syncing it to your headphones over USB.
Auto-detects your headphones
Plug in your H2O Audio device and the app recognizes it instantly. No folder hunting, no manual path-setting.
Discover music by genre
Browse freely licensed tracks across dozens of genres — from jazz to electronic — and pick what goes on your headphones.
Download & validate MP3s
Every file is byte-validated before it lands on your device — no corrupt files, no silent failures.
One-click USB sync
A live progress bar shows every file transfer. Sync your whole selection or just a single track.
Preview before you sync
Play any track or podcast episode right inside the app to make sure it's what you want on your headphones.
Top podcast charts
Browse podcasts by category, pull top charts, select episodes, and sync them — all without leaving the app.
Scans your local library
Automatically finds music in Apple Music, iTunes, and common folders. Genre is read from ID3 tags and file metadata.
100% free music sources
All streaming pulls from openly licensed catalogues — Internet Archive, Jamendo, and Free Music Archive.
How it works
From zero to swimming in four steps.
The whole flow takes about two minutes.
Install the app
Download and open H2O Sync on your Mac or PC. No account, no sign-in.
Find your music
Browse free tracks by genre or search podcasts. Select what you want on your headphones.
Plug in your headphones
Connect via USB. The app detects your device and lights up the Sync button.
Jump in the water
Your music is on the device. Eject, disconnect, swim.
Compatible devices
Works with every H2O Audio headphone.
The app auto-detects any of these when connected via USB — just plug in and sync.
Music sources
Millions of tracks. Zero cost.
H2O Sync pulls from openly-licensed catalogues and your own library — no subscription, no DRM.