C81 - Two Headphones Not Working – Avantree Support

Can't hear audio through two headphones? Some C81-Gaming units may not support Dual Link. Follow these steps to check your connection.

Important: Dual Link Compatibility

Some C81-Gaming units, including batch 25J3, may not support two Bluetooth headphones simultaneously.

Before You Start

Turn Bluetooth OFF on nearby phones, tablets, and computers previously paired with your headphones.

Connect the First Headphones

Plug C81 into your powered-on PS5 or computer.
Put the first headphones into Bluetooth pairing mode.
Hold C81's multifunction button for about 2 seconds until blue and white flash alternately.
Wait for solid blue or flashing blue to confirm connection.

Keep the first headphones ON and connected while adding the second pair.

Connect the Second Headphones

Keep the first headphones connected.
Activate C81's second-headphone pairing mode using its multifunction button.
Put the second headphones into Bluetooth pairing mode.
Wait for connection, then play audio and check both headphones.

Still Not Working? Reset and Retry

Clear C81's pairing history .
Clear both headphones' Bluetooth pairing history.
Repeat Steps 1 and 2.
If needed, test with two other compatible Bluetooth headphones.

Both headphones work separately, but not together?

Your C81 may have a Dual Link compatibility or connection issue.

Want to Connect Multiple Headphones?

Consider Avantree C82 Aura, an Auracast USB transmitter that broadcasts audio to multiple compatible headphones at once.

Important: Your headphones must be Auracast-enabled. Regular Bluetooth-only headphones cannot receive Auracast broadcasts.

Device compatibility: C82 Aura is intended for compatible computers, phones, and tablets. It is not officially supported for PS5 or other game consoles.

View C82 Aura Product Check Headphone Compatibility

Still Need Help?

Send us your C81 batch number, both headphone models, and a short video showing the issue.

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