🔒
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Admin Portal

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WiFi Audio Sync — No App Required

One hotspot.
Every device
becomes a speaker.

No Bluetooth speaker? No problem. One person shares their hotspot — everyone opens a browser — and every phone, tablet and laptop in the room plays in perfect sync. Free to start.

Why SoundUnion
No hardware.
No limits.
⚡
Millisecond Sync
NTP-inspired clock synchronisation keeps all devices playing in perfect unison — under 5ms accuracy across your local network.
📱
Any Device
iPhone, Android, tablet, laptop — if it has a speaker and a browser, it joins your fleet. No app download required.
🌐
Works on Hotel WiFi
Smart buffering adapts to connection quality in real time. Pool, lobby, hotel room — SoundUnion finds a way.
🎛️
Spatial Layout
Position devices on a virtual grid and control volume per device. Build your own surround sound from what's in the room.
Live App
The Room

Host a room from one device. Everyone else joins with a code.

soundunion.app — live session
Host Controls
YOUR ROOM CODE
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Share this with your crew
🎵
Drop audio file here
MP3, WAV, FLAC — up to 50MB
🎵
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🔈 🔊
Fleet Devices
Waiting for devices to join…
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Join this room from another device
Pricing
Your fleet.
Your plan.
Free
$0
forever
Party
$4.99
per month
Pro
$9.99
per month
Venue
Custom
hotel / venue licence
Getting Connected
How it works

SoundUnion runs over WiFi — not Bluetooth. Everyone joins the same WiFi network, opens a browser, and your devices become one sound system.

STEP 01
📶
Join the same WiFi
Everyone connects to the same network — hotel WiFi, home WiFi, or a mobile hotspot. That's it.
STEP 02
🌐
Open a browser
No app download needed. Open Chrome on any phone, tablet or laptop and go to soundunion.app.
STEP 03
🔑
Create or join a room
One person creates a room and gets a 4-digit code. Everyone else enters that code to join the fleet.
STEP 04
🔊
Press play
The host uploads a track or links a stream. Every device plays in perfect sync — millisecond accurate.
Device Compatibility
All brands. All platforms. One room.
🍎
iPhone & iPad
✓ Safari & Chrome
🤖
Android
✓ Chrome recommended
💻
Windows PC
✓ Chrome & Edge
🖥️
Mac
✓ Best speaker quality
📟
Smart TV
~ Built-in browser
⌚
Tablets
✓ All brands
⚡No Bluetooth required  ·  📶Same WiFi network needed  ·  🌐No app download  ·  🔒Rooms are private & temporary
✅
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