Source USB audio from: PC · Mac · PS5 Phone · tablet
Listen with LE Audio hearing aids LE Audio headphones Classic Bluetooth headphones
Calls Use a compatible headset mic.
Not supported: Hearing aids without LE Audio cannot pair directly.
Group listening: C82 Aura firmware is required.
Part 1 of 2
Pair your hearing aids or headphones Open the one that matches your receiver.
PAIR Button LED
LE Audio hearing aidsDirect pairing · solid green when connected
Pair LE Audio hearing aids
Step 1 Start LE Audio pairing on C82 LEA
Plug C82 LEA into your USB-audio device. If the LED flashes blue and white, quickly press C82 LEA's side PAIR button 3 times for LE Audio.
Ready: The LED flashes green and white.
Different light? No green/white flashing: Hold C82 LEA's PAIR button for 2 seconds.
Still not ready? Fix pairing .
Step 2 Pair both LE Audio hearing aids
Requires: Hearing aids with Bluetooth LE Audio.
Turn off Bluetooth on nearby devices. Put both aids in pairing mode using their maker's instructions. Keep them within 2 in / 5 cm of C82 LEA.
Connected: The C82 LEA LED stays solid green.
Not connected? For rechargeable aids, place them in the case, then remove them and retry.
Full hearing-aid pairing help ↗
LE Audio headphonesDirect pairing · solid green when connected
Pair LE Audio headphones
Step 1 Start LE Audio pairing on C82 LEAPlug C82 LEA into your USB-audio device. If the LED flashes blue and white, quickly press C82 LEA's side PAIR button 3 times for LE Audio. Ready: The LED flashes green and white.
Different light? No green/white flashing: Hold C82 LEA's PAIR button for 2 seconds.
Still not ready? Fix pairing .
Step 2 Pair LE Audio headphonesRequires: Headphones with Bluetooth LE Audio.
Put the headphones in pairing mode, not just on. Keep them close to C82 LEA. Connected: The C82 LEA LED stays solid green.
Not connected? Fix pairing .
Classic Bluetooth headphonesDirect pairing · solid blue or purple when connected
Pair Classic Bluetooth headphones
Step 1 Start Classic pairing on C82 LEAPlug C82 LEA into your USB-audio device. Ready: The LED flashes blue and white.
Different light? Green/white flashing: Press C82 LEA's side PAIR button three times.
No blue/white flashing: Hold PAIR for 2 seconds.
Still not ready? Fix pairing .
Step 2 Pair Classic Bluetooth headphonesPut the headphones in pairing mode. Turning them on is not enough. Keep them close to C82 LEA.
Headphone pairing help Choose brand
AirPods / AirPods Pro
Check the back of your case.
There is a button
AirPods 1–3 / AirPods Pro 1–2
Open the case with your AirPods inside.
Hold the button on the back for about 5 seconds.
Ready when: the case light flashes white.
There is no button
AirPods 4 or 5 / AirPods Pro 3
Open the case with your AirPods inside.
Double-tap the front of the case.
Ready when: the case light flashes white.
AirPods Max
Press and hold the noise control button for about 5 seconds.
Ready when: the status light flashes white.
Bose
Turn on the headphones or open the earbud case. Hold the Bluetooth or power button until the light flashes blue or you hear “Ready to connect.” Ready when: the light flashes blue or the voice prompt confirms pairing.
Beats
Turn on the headphones. Hold the system or power button until the indicator flashes. Ready when: the indicator flashes for pairing.
Sony
With the headphones off, hold the power button for about 5 seconds. For Sony earbuds, use the case or touch-sensor pairing command for your exact model. Ready when: the light flashes blue or you hear “Bluetooth pairing.”
Samsung Galaxy Buds
Place both earbuds in the case, close it for 5–6 seconds, then open it. If pairing does not start, wear both earbuds and touch both touchpads until you hear the pairing sound. Ready when: the earbuds announce pairing or show their pairing pattern.
JBL
Hold the Bluetooth or power button until the indicator flashes rapidly. If JBL reconnects to a phone, turn that phone Bluetooth off and try again. Ready when: the indicator flashes rapidly.
Other headphones
Hold the power, Bluetooth, or main button until the light flashes rapidly. Check the headphone manual for the exact command if the light does not change. Ready when: the headphones show their documented pairing pattern.
Connected: The C82 LEA LED stays solid blue or purple.
Not connected? Disconnect the headphones from nearby devices, then retry .
Connected? Choose sound output →
Part 2 of 2
Choose C82 LEA as sound output Open your source device after the C82 LEA light turns solid.
Windows computer Play computer audio Requires: C82 LEA is paired with your hearing aids or headphones.
Open Windows Settings → System → Sound → Output. Select C82 LEA or the Avantree USB audio device. Play media at low volume, then raise it slowly. Done: Audio plays through the connected receiver.
If not: Fix no sound .
Mac computer Play Mac audio Requires: C82 LEA is paired with your hearing aids or headphones.
Open Mac System Settings → Sound → Output. Select C82 LEA or the Avantree USB audio device. Play media at low volume, then raise it slowly. Done: Audio plays through the connected receiver.
If not: Fix no sound .
PS5 Play PS5 game audio Requires: C82 LEA is paired with your hearing aids or headphones.
Open PS5 Settings → Sound → Audio Output. Select the C82 LEA USB audio device as Output Device. Play game audio at low volume. Done: Game audio plays through the connected receiver.
If not: Fix no sound .
USB-C phone or tablet Play phone or tablet audio Requires: USB audio support and C82 LEA paired with your hearing aids or headphones.
Plug C82 LEA into the device's USB-C port. Play media at low volume. If audio stays on the device, select its USB audio output. Done: Audio plays through hearing aids or headphones connected to C82 LEA.
If not: Confirm USB audio support, then fix no sound .
Quick help
Fix a problem Open the symptom you see.
Hearing aids or headphones will not connect Fix C82 LEA pairing Possible cause: Wrong mode or a connection to another device.
Check C82 LEA: green/white flashing for LE Audio; blue/white for Classic Bluetooth. Press PAIR three times to switch modes, or hold PAIR 2 seconds to start pairing. Turn off nearby Bluetooth and put the receiver in pairing mode. Done: Solid green confirms LE Audio; solid blue or purple confirms Classic Bluetooth.
If not: Clear saved pairings .
Connected, but no sound Restore C82 LEA audio Possible cause: Wrong output, mute, or reconnection to a phone.
Play media and select C82 LEA as the source's sound output. Unmute and raise source and receiver volume slowly. Turn off nearby phone Bluetooth. If still silent, reinsert C82 LEA into another direct USB port. Done: Audio plays through the receiver.
If not: Open full no-sound help ↗ .
Audio keeps disconnecting Keep C82 LEA connected Possible cause: Another device reconnects or interrupts USB/wireless audio.
Turn off Bluetooth on nearby devices. Move the receiver close to C82 LEA. Plug C82 LEA directly into the source USB port, then reconnect. Done: Audio stays connected while media plays.
If not: Open full disconnect help ↗ .
PS5 audio works, but others cannot hear you Check the PS5 microphone Possible cause: C82 LEA firmware or Voice Chat Mode; headset compatibility varies.
Update C82 LEA firmware on Windows or Mac.Reconnect C82 LEA and the headset to the PS5. Once connected, quickly press C82 LEA's Multifunction Button twice. Open PS5 Settings → Sound → Microphone; select USB input and unmute. Done: The LED is solid white and the PS5 microphone level moves when you speak.
If not: Follow official PS5 microphone help ↗ .
Optional
More help
Buttons and lights Read C82 LEA buttons and lights The side Multifunction Button is called PAIR in the C82 LEA manual. The LED is on the lower front edge.
Side button: PAIR. Lower front light: LED. Light or action Meaning Green and white flashing LE Audio pairing Solid green LE Audio connected Blue and white flashing Classic Bluetooth pairing Solid blue or purple Classic Bluetooth connected Hold PAIR 2 seconds Start pairing Press PAIR three times Switch LE Audio / Classic mode Press PAIR twice while pairing Clear saved pairings
Full controls reference ↗
Clear saved pairings Clear C82 LEA pairing history Use with: Standard C82 LEA firmware. This clears saved LE Audio and Classic connections; pair again afterward. After installing C82 Aura firmware, use its different reset steps ↗ .
Keep C82 LEA plugged into powered USB. Hold PAIR for 2 seconds until the LED flashes green/white or blue/white. While it flashes, quickly press PAIR twice. Done: Solid white lasts about 5 seconds; C82 LEA enters pairing mode.
If not: Open the reset guide ↗ .
Use Auracast with hearing aids Join an Auracast broadcast Requires: Install C82 Aura firmware on C82 LEA through the official updater ↗ , then reset with the C82 Aura method. Standard C82 LEA direct pairing does not broadcast Auracast.
Keep the updated adapter in powered USB. Quickly press its side Multifunction Button three times. A green LED confirms reset. Confirm the adapter broadcasts as described in the C82 Aura guide . Done: The adapter is broadcasting and ready for hearing aids to join.
If not: If C82 Aura firmware is not offered or no broadcast appears, contact Avantree Support.
Choose how your hearing aids receive Auracast Join with Auracast hearing aids Requires: Auracast hearing aids and an updated C82 LEA broadcasting with C82 Aura firmware.
Check for a solid white adapter LED. If orange, hold the side button 6 seconds until white. Turn on the aids and enable Bluetooth on the phone running their hearing-aid app. Select the adapter broadcast in the app's Auracast list, not the phone Bluetooth list. Play source audio at low volume, then raise it slowly. Done: Source audio plays through the joined hearing aids.
If not: Check the white light and scan again using the C82 Aura guide .
Choose a brand
Requires: Your exact hearing-aid model supports Auracast. If unsure, check its app or official guide.
Other ways to listen
Choose the receiver that matches your hearing aids.
You can hear music from your phone through your hearing aids Use Aura C Aura C → phone → hearing aids
Plug Aura C into a compatible USB-C phone. The phone sends the broadcast to hearing aids already connected by Bluetooth, MFi, or ASHA. Aura C does not pair directly with hearing aids.
Set up Aura C →
You can switch your hearing aids to “T” or “MT” Use AuraCoil or AuraClip Switch to T or MT. The neckloop sends the broadcast to your hearing aids.
Update firmware Update C82 LEA firmware Use when: Support directs you to update or pairing repeatedly fails. To enable Auracast, choose C82 Aura firmware in Avantree Updater.
Example: choose the C82 Aura tab. Version numbers shown may differ. Open the image to enlarge. Download Avantree Updater ↗ on Windows or Mac. Connect C82 LEA to the computer and install the intended firmware. Keep C82 LEA connected until the updater reports completion. For standard firmware, clear pairings . For C82 Aura firmware, use the C82 Aura reset method ↗ . Done: The updater says complete; audio plays after re-pairing or rejoining the broadcast.
If not: Get firmware update help ↗ .