Many users have requested an Auracast™ microphone solution. We’ve released an iOS and Android app that lets you broadcast your voice by simply plugging in the FlooGoo FMA120 and tapping a single button.
My Samsung Galaxy S25 fe does that without the need of any other device.
Thank you for sharing— the S25 may have some important differences from the S23 Ultra we tested.
Here are the software versions on our S23 Ultra; they’re current as of today.
It offers an Auracast transmit option, but it appears to work only with the built-in media player; there’s no way to broadcast the microphone.
Samsung also displays the current track title in the broadcast information—visible to all nearby receivers, even when encrypted—which isn’t ideal for privacy.
Compared with a microphone broadcast from an iPhone via the FMA120, the key difference we observed was reliability: with our test hearing aids (ReSound Nexia 9), the Samsung broadcast wasn’t received consistently, whereas the FMA120 was stable. Auracast and LE Audio typically take more time to integrate into a complex mobile platform that must manage coexistence with other radios like Wi-Fi; a dedicated USB dongle such as the FMA120 avoids that complexity and can be more stable.
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I really have no need for aurcast, but having LE audio makes my life very comfortable and I have now the S25fe. The sound is great. The only reason I upgraded was I needed the larger screen due to my vision. I don’t listen to music often but I find that streaming from my phone using Amazon prime music is good enough.
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That’s completely understandable. LE Audio comfort plus the S25 FE’s larger screen sounds like the right fit for your needs.
For context, we built the mic app after a forum user asked for a standalone Auracast microphone. A true standalone would require new hardware—costly to build and less convenient than a phone with a small FMA120 adapter. With the app, we can add features like voice levelling and fine-tune the mic experience more easily and powerfully.
Thanks for sharing your experience—it helps others decide what they actually need.
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How would I use this - can you give me some scenarios that this is used in- some examples?
Also is this iPhone compatible or only Android?
Thank you.
Suppose you’re hosting a house auction and expect some audience members to be wearing hearing aids. Since you can’t rely on having an installed Auracast™ transmitter on site, you can simply use the dongle with your phone. This way, anyone with Auracast-enabled hearing aids—or with a FMA120 set to receiver mode—can easily tune in to your channel and hear you clearly.
The iOS app is already available—see the first post for details—and the Android version will be released soon.
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ah! so the dongle becomes the Auracast xmtr to them ?
My problem is that people are complaining about how I sound -muffled, distant, unclear on the phone using Phonak Spheres and iPhone 12Pro . With my HAs, is Android the long term solution? Can anything be done with iPhone? Any work around or accessory? I need to replace a phone in the family and could give them mine if the 17Pro is of any benefit?
How is your 121 coming along - when available?
At the request of a Phonak user, we developed a special firmware that routes calls through the phone’s microphone instead of the hearing aids, which helps improve call quality. For real-world performance, you may reach out to Jack, as we don’t have a sample unit to test ourselves.
The 121 is expected to launch in Australia within the next month, and it should become available on Amazon US about two weeks later.
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awesome Ranson! Would this custom firmware work with the 121 ?
Is the 120 ergonomically better fitted to this use?
Is there a lightning adapter to your FMA120 that you recommend.
Any members here using this approach… PLEASE message me or post link to your experience with it. TY!
We’ll also update the special firmware so it works with the FMA121.
The FMA121 requires a small USB-C cable (included in the box) to connect with USB-C phones. For iPhones with a Lightning port, however, the FMA120 may be the better choice, as Lightning-to-USB-C camera adapters are still uncommon and the available Lightning camera adapters tend to be bulky with multiple ports.
In our testing, we used the fourth option shown in the image below, though any of these should work with the FMA120. Just be sure the seller offers returns in case of a faulty unit.
The special firmware lets you use your phone’s microphone for calls, so as long as you speak into the phone as usual, the remote audio quality is guaranteed. The only trade-off is an additional ~0.1 second delay in the audio you hear from the other side, which may make replies feel slightly slower in conversation.
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The Android version of FlooMic is now available, with support for stereo microphone broadcasting on devices that provide it.
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I was very excited to receive this, and for the few seconds it worked, friends said the sound was much clearer than with my hearing aid mics…. but repeatedly over many attempts, I am failing.
The app needs to start before the dongle is inserted. I insert it when it says connect your FlooGoo, which seems to work in one combination of lightning adapter to C and FlooGoo orientation.
It then says TAP TO BROADCAST, which I do, as screen goes red to green and I then change apps to call friend. Friend says sound is no different. I go back to FlooGoo and it says to Connect FlooGoo.
What’s up with that - iOS 26 on iPhone 12Pro
Just to be clear: this isn’t for phone calls or boosting your hearing-aid mic on calls. It’s for live, local broadcasting—think a house auction, a short talk, or any situation where you’re speaking to people nearby. You talk into your phone and people with Auracast-enabled hearing aids can hear you directly. If someone’s on older aids, they can still listen by putting the FMA120 in receiver mode.
Brands sell “remote mic” accessories that do this—this setup just does it with a phone + app + dongle. For reference, companies offer mics like the ReSound Multi Mic+, which stream speech directly to hearing aids for noisy spaces, group conversations, or public announcements; on Auracast-enabled models, multiple users can listen to the same source at once.
Thanks for the feedback—this actually highlights a current bug: the app doesn’t handle phone-call state properly, so if an incoming call interrupts, the broadcast may not behave reliably.
uhBoy! I am the ONE wearing HAs. So most of the time, unless I am talking to myself, the listeners are NOT wearing HAs. I thought that over multiple posts and topics, the issue of a workaround for sphere users to make calls using hearing aids to hear, while the phone’s mic rather than the aids mics are used to pic up the voice. So the mic could be held by the mouth, not back by the ears and being blown in the winds while far from the voice!
Seems like I am stuck in a non ending loop of confusion on this.
Once again: Is there any phone that will allow me to choose mic being used when speaking on the phone? SO I can use the HAs mics when in at my desk, or walking about the office, and the phone’s mic, when outdoors or in a noisy space?
We have a special firmware that was originally developed for a Phonak user, which may also help in your situation — I believe we discussed it earlier. This firmware disables the microphone channel from the hearing aids to the phone during calls, which resolves the issue. With it, you don’t need to search for a specific phone model, as it will work with any phone.
Here’s the link to download the special firmware. While it was requested by a Phonak user, it isn’t limited to Phonak — it will work with any hearing aids that connect through the dongle.
Before installing, please make sure to disconnect your hearing aids from your phone. Otherwise, the phone will always default to using the hearing aids’ built-in microphone for calls, which is the issue you’re trying to solve.
If you want to switch back to using the hearing aids’ microphone, you can simply unplug the dongle and reconnect your hearing aids directly to your phone. On an iPhone, this may be as simple as toggling Bluetooth off and on, which is quite straightforward.
No additional app is required on the phone — in this setup, the dongle works like a standard wired headset. Just make sure to configure the dongle in High Quality mode.
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Before installing, please make sure to disconnect your hearing aids from your phone. Otherwise, the phone will always default to using the hearing aids’ built-in microphone for calls, which is the issue you’re trying to solve.
If you want to switch back to using the hearing aids’ microphone, you can simply unplug the dongle and reconnect your hearing aids directly to your phone. On an iPhone, this may be as simple as toggling Bluetooth off and on, which is quite straightforward.
I turn OFF the BT on iPhone. FlooGoo Green.
I Make call, sounds same they say, check FlooGoo and it is not Green, not red, just ghosted.
FlooMic isn’t intended for phone-call audio; running it during a call can cause unexpected behavior, so please do not run it.
Please load firmware 1.1.2.1, pair with your hearing aids in High Quality mode on a PC, then connect it to your phone and check the call quality again. If issues remain, please share a screenshot of the FlooCast app on your PC.
Am I stuck in a time warp?
This is an excerpt from right above in this thread. And in other threads I been trying to dig into a solution HOW TO USE PHONE MIC WITH AID SPEAKERS ON CALLS WITH IPHONE???
What words should I be using?
And also the software change in iOS26 - I reboot phone and spheres. Cannot find a syntax, sequence or setting combo where hearing aid speakers sound the caller’s voice, and the caller hears my voice via phone microphone.