Most Android Users Don't Know Their Phone Can Broadcast Music to Unlimited Headphones at Once
With Auracast on Android 15+, your phone can send one audio stream to any number of Bluetooth earbuds simultaneously—no individual pairing required. It ships hidden, but it's real and it's live.
01. What It Is
Auracast is a broadcast audio feature built on Bluetooth LE Audio. Instead of the classic one-phone-to-one-earbud pairing model, your phone becomes a tiny radio station that transmits a single audio stream. Any compatible pair of earbuds, headphones, or hearing aids can 'tune in' to that broadcast—without ever going through the traditional pairing handshake.
This means an unlimited number of receivers can listen to the same audio at the same time. You can hand a friend their own Auracast headphones, they select your stream, and they hear exactly what you hear—a shared movie, a playlist, a podcast—all from your one device.
It works because both the transmitting phone and the receiving earbuds support Bluetooth LE Audio (Bluetooth 5.2 or newer) and the LC3 codec. Broadcasts can be public and open to anyone nearby, or private and locked with AES-128 encryption that requires a password or QR code to join.
Why It Matters
This eliminates the frustration of only one person being able to hear audio from a phone. Two people can share a movie on a flight from a single device, a group can listen to the same music without a speaker disturbing others, and public venues like airports and museums can broadcast directly to your personal earbuds. It turns one phone into a private or shared audio hub with essentially no per-device setup.
Who Can Benefit
- Travelers who want to watch the same in-flight movie with a companion, each on their own earbuds
- Groups who want silent shared listening in libraries, dorms, or open offices
- People with Bluetooth LE Audio hearing aids who can tune into venue broadcasts directly
- Anyone who owns two sets of compatible earbuds and wants to share audio without a splitter or speaker
02. Step-by-Step Guide
- 1
Confirm your hardware supports it
You need a broadcaster phone with Auracast enabled—such as Pixel 8/8 Pro, Pixel 9 series, Samsung Galaxy S23/S24/S25, Galaxy Z Fold 5/6/7, or select Xiaomi and POCO models—running Android 15 or newer. Both your phone and the receiving earbuds must support Bluetooth LE Audio and the LC3 codec.
- 2
Open the Audio Sharing menu
Go to Settings > Connected Devices > Connection Preferences > Audio Sharing. This is the same path across supported devices, though it ships hidden and many users never discover it.
- 3
Start the broadcast
Toggle 'Share audio' to begin broadcasting. Your phone now transmits its current audio as an Auracast stream that nearby compatible devices can find.
- 4
Choose public or private
Set the broadcast to public so anyone nearby can join, or private to lock it with AES-128 encryption. Private broadcasts require a password or QR code to access, keeping your stream limited to invited listeners.
- 5
Have receivers join the stream
On each receiving device, scan for available Auracast streams and select yours. If it's a private broadcast, enter the password or scan the QR code. Once joined, everyone hears the same audio in sync.
Pro Tips
- Use a private broadcast with a QR code when sharing with friends—it's fast to join and keeps strangers out.
- Because it's one-way, only your host phone controls play, pause, and volume for the stream—receivers just listen.
- Look for the Auracast option at public venues like airports and museums; you may be able to tune into announcements or exhibits directly through your own earbuds.
- Since there's no pairing limit, you can add or remove listeners on the fly without reconfiguring anything.
Warnings & Limitations
- Both transmitter and receiver must support Bluetooth LE Audio (BT 5.2+) and LC3—most devices made before 2023 do not.
- The Pixel 8a and older Pixel models cannot broadcast even though they support LE Audio, because Google did not enable broadcasting on them.
- Receiving devices cannot control playback; all media control stays on the host phone.
- Availability depends on your exact model and Android version—if you don't see Audio Sharing in the menu, your hardware likely doesn't support broadcasting.
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