FlooGoo FMA121 — LE Audio / Auracast™ Transmitter/Receiver
Stream audio from your phone, laptop, TV, or other devices with the FMA121. Featuring both USB-C and 3.5 mm inputs, it connects easily to a wide range of sources.
Powered by LE Audio technology, it supports unicast and Auracast™ broadcast modes, ensuring seamless compatibility with Bluetooth headsets, speakers, earbuds, and hearing aids. It also supports the aptX™ codec family—including Classic, HD, Adaptive, Lossless, Voice, and Lite variants—delivering high-fidelity music, low-latency gaming, and clear voice calls when used with compatible devices.
The FMA121 can function as either an Auracast™ transmitter or receiver, depending on the installed firmware.
Official Auracast™ Qualification (Bluetooth SIG)
One adapter for all — phone, PC, TV, soundboard, or enterprise AV systems.
Guides & Contact
User Guide: Auracast Receiver (PDF)
User Guide: Church Setup (PDF)
For setup, operation modes, and troubleshooting.
Contact us for support or assistance with using FMA121.
We’re happy to help with configuration for venues and accessibility deployments.
Host Apps
Auracast with configurable latency
FMA121 streams low-latency LC3 audio to Sony WH-1000XM6
FMA121 streams low-latency LC3 audio to Starkey Edge AI
FMA121 streams CD-quality LC3 audio with Samsung Buds2 Pro during online calls
FlooCast configures the FMA121 for high-quality A2DP streaming, low-latency gaming, and LE Audio features such as Auracast™ broadcast. It can display the active Bluetooth codec during streaming/broadcasting and provides firmware update tools.
Firmware Updates
FMA121 shares the same firmware as FMA120, please read the README.txt inside each zip before updating.
- Note 1: Download firmware to a local folder (not OneDrive/other cloud) to avoid update issues.
- Note 2 (Asian users): Ensure the full path to the firmware folder uses only English characters.
Versions
- 1.1.5 — Improves stability of mode switching.
- 1.1.4.6 — Initial release of FMA121.
Auracast™ Receiver
The FMA121 can transform your mobile phone into an Auracast receiver: listen to nearby public broadcasts on your phone’s speakers or forward to Bluetooth devices (headsets, earbuds, speakers) — even legacy hearing aids without native Auracast support.
User Guide: Auracast Receiver (PDF)
Update your FMA121 to the latest Receiver-mode firmware. Important: If you’re switching from transmitter to receiver firmware, run “Clear All” first to remove all previous pairings and avoid connection issues.
- AS1.0.8 — Add support for FMA121.
Auracast™ Microphone
Turn phones into Auracast Microphone
Important: Please configure your FMA121 in Broadcast mode before plugging it into the phone.
Plug FMA121 into your phone, open FlooMic , and speak. The app captures your voice and FMA121 broadcasts it as an LE Audio Auracast stream that any compatible listener can join—no pairing, just join the broadcast.
- Perfect for ad-hoc classes, campus tours, small talks, gyms, and quick stand-ups.
- Low-friction “plug-and-talk” setup; on-screen mute/level (UI may vary).
- Works with any Auracast-capable earbuds, speakers, or assistive listening receivers.
Features & Certifications
| Radio | Class 1 Bluetooth v5.4, +15 dBm BR/LE TX power, −97 dBm BR and −100.5 dBm BLE 1M sensitivity |
|---|---|
| Profiles | Dual-mode: works with Bluetooth Classic HFP/A2DP and LE Audio (Auracast/PBP, TMAP) |
| Codecs | SBC, LC3, aptX™, aptX HD, aptX Adaptive, aptX Adaptive Lossless, aptX Voice/Lite |
| USB | USB-C port; composite device (HID + virtual COM); audio/play/voice control from BT headsets/earbuds |
| 3.5 mm Jack | Stereo audio input, max 0.85 Vrms, compatible with common headphone outputs. |
| LE Audio | Gaming mode with Voice Back Channel; Unicast Music (MCP) & Unicast Voice (CCP); Broadcast (PBP/TMAP) |
| Controls | Volume via VCP |
| Latency | LE Audio Gaming mode: 15 ms ~ 25 ms (excluding decoding delay in receiving devices) |
| Power consumption (LED off; +4 mA when LED on) | LE Audio Unicast: 10 mA (48 kHz) / 8 mA (24 kHz); Auracast: 18 mA |
| Compatibility | Microsoft Teams compatibility |
| Size / Weight | 33 × 33 × 7 mm; 7 g |
| IDs | Bluetooth DID: D065940; FCC: 2A22WFMB120 ; Giteki ID: 204-B01105; CE • RCM • RoHS |