Phone as Remote Mic

Turn Your Phone into a Remote Microphone for Your Hearing Aids

Use your smartphone and Avantree C82 Aura to bring nearby speech directly to Auracast-enabled hearing aids in everyday one-to-one conversations.

Shop C82 Aura See Setup Steps
USB-C plug and play For Auracast hearing aids Best within 30–50 cm

The Daily Challenge

Hearing loss is not just about volume.

Many people can hear that someone is speaking, but still cannot understand the words clearly, especially in noisy places like coffee shops, clinics, restaurants, front desks, trade shows, or family gatherings.

Dedicated remote microphone accessories can work well, but they are often expensive and tied to one hearing aid brand.

If you have newer Auracast-enabled hearing aids, your smartphone can become a simpler close-range microphone with a small USB-C Auracast transmitter.

Instead of asking people to speak louder, point your phone toward the person speaking and listen through your hearing aids.
1-to-1Designed for nearby conversations
30-50 cmRecommended pickup distance
AuracastNo traditional Bluetooth pairing

How It Works

A simple speech-to-hearing-aid chain.

The phone microphone captures nearby speech. C82 Aura broadcasts the phone audio over Auracast. Compatible hearing aids join the broadcast and play the speech directly.

1
VOICE

Speaker talks near the phone

Keep the phone pointed toward the speaker for clearer voice pickup.

2
APP

Phone runs a mic app

A microphone or voice amplifier app sends audio to USB-C output.

3
CAST

C82 Aura broadcasts

The USB-C transmitter creates an Auracast audio broadcast.

4
HEAR

Hearing aids listen in

One or more Auracast-enabled hearing aids can join the broadcast.

Best For

Everyday close-range conversations

  • ✓Coffee shops and restaurants
  • ✓Doctor appointments
  • ✓Front desk or counter service
  • ✓Family gatherings
  • ✓Noisy trade shows
  • ✓Small conversations in busy environments

Not Ideal For

Far-away or multi-speaker situations

  • ×Large meetings with many speakers
  • ×Group discussions from different directions
  • ×Speakers who are far from the phone
  • ×Classrooms, lectures, or conference rooms
  • ×Any setting where your phone must be left far away

Everyday Places

Helpful when the speaker is nearby and clarity matters.

A richer visual moment can sit near the Best For list: clinic desks, reception counters, and other close conversations where the phone can be pointed toward one speaker.

Close conversation Keep the phone near the speaker instead of across the room.
Visible workflow Phone mic app, C82 Aura, and hearing aids are clear in one scene.
Phone used as a remote microphone during a doctor appointment
C82 Aura Setup

What You Need

Small hardware, familiar phone, compatible hearing aids.

The setup is designed to keep the daily workflow simple after the first connection.

USB
iPhone 15 or newer, or USB-C Android phoneOlder iPhones may need a suitable adapter.
MIC
Microphone or voice amplifier appUse an app that can send audio through USB-C output.
C82
Avantree C82 AuraUSB-C Auracast audio transmitter.
HA
Auracast-enabled hearing aidsExamples include compatible models from Oticon, Starkey, and other Auracast hearing aids.

First-Time Setup

Pair once, then keep it simple.

You only need the full setup the first time. After that, you usually plug in C82 Aura, open the microphone app, and join the saved broadcast if your hearing aids do not reconnect automatically.

Download a microphone or voice amplifier app.

Choose one that can route audio to a USB-C audio device.

Plug C82 Aura into your phone.

Use the phone's USB-C port or the correct adapter for older iPhones.

Start the C82 Aura broadcast.

Play any audio from the phone for a few seconds if needed.

Join the broadcast from your hearing aid app.

Find the Avantree C82 Aura Auracast broadcast and connect.

Open the microphone app.

Select the USB-C audio device or C82 Aura as output if the app asks.

Point the phone toward the speaker.

Keep it close to the person speaking, ideally within about 30-50 cm / 1-1.5 ft.

Frequently Asked Questions

Clear answers before you try it.

Does this work with regular Bluetooth hearing aids?
No. This solution requires Auracast-enabled hearing aids. Regular Bluetooth hearing aids cannot directly receive an Auracast broadcast.
Do I need to pair my hearing aids with C82 Aura?
No traditional Bluetooth pairing is needed. Join the Auracast broadcast using your hearing aid app or a compatible Android Auracast assistant.
Can I use any microphone app?
Most microphone or voice amplifier apps should work as long as the app can send audio out through USB-C. Test your preferred app first because behavior may vary.
Can more than one person listen at the same time?
Yes. Multiple Auracast-enabled hearing aids can join the same broadcast at the same time.
Is this the same as a professional remote microphone?
Not exactly. Professional remote microphones may have better pickup and noise handling. This phone-based solution is simpler and more convenient for everyday use.

Ready to Try It?

Turn your smartphone into a simple remote microphone for your Auracast hearing aids.

Built for everyday moments where the person speaking is nearby and clarity matters.

Shop C82 Aura