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How do I upload music?
The headphones use built-in MP3 storage.
Simply connect them to your computer using the included USB cable and drag your music files directly onto the device — just like a flash drive.
No apps, no subscriptions, no WiFi needed.
Perfect for uninterrupted swim sessions.
Is it Bluetooth underwater?
No — Bluetooth does not transmit reliably underwater.
That’s why these headphones use built-in storage instead of Bluetooth.
Your music is stored directly on the device, so it plays smoothly even in deep water with zero signal issues.
This makes it ideal for serious swimmers.
Does chlorine damage it?
No. The headphones are designed for regular pool use and are resistant to chlorine exposure.
For maximum lifespan, simply rinse them with fresh water after each swim — just like you would with goggles or swim gear.
They are built for consistent training sessions.
Why Competitive Swimmers Choose HydroSync
Training 4–6 days a week means your gear needs to keep up. HydroSync was built for swimmers who spend hours in the pool and need uninterrupted audio during long sets.
No signal drops. No distractions. Just you, the water, and your playlist.
🏊 Designed For Pool Training
Secure fit that stays in place off walls and flip turns.
🎧 Built-In MP3 Storage
No Bluetooth required underwater — just load your music and swim.
💧 Chlorine-Resistant Build
Made for daily use in chlorinated pools.