Pair AirPods or any Bluetooth headphones with your Speediance Gym Monster and you get music, trainer prompts and system sounds in your ears instead of the room. Pairing happens on the Gym Monster itself. Voice control keeps working at the same time, and the setup for that is in how to keep GMVoice voice control working.
No transmitter? On iPhone or Android with a Wi-Fi or hybrid connection and the Dongle API, GMVoice can also stream the Gym Monster audio to your phone and into the headphones you already use with it, mixed with audio from your phone. Turn on Gym Monster audio in the Audio devices panel. The step-by-step setup, with the right Gym Monster volume sliders, is in how to stream Gym Monster audio to your headphones with GMVoice.
Which headphones work with Speediance Gym Monster?
AirPods and ordinary Bluetooth headphones both work, and the exact brand is not mandatory. What matters is the hardware pattern on the audio side:
- AirPods or other wireless headphones.
- USB Bluetooth audio transmitter, for example Avantalk C82.
- USB hub, for example a UGREEN USB hub, so the Gym Monster can host the audio transmitter and, if you use it, the GMVoice dongle as well.
If you also want hands-free commands while the music plays, see how to keep GMVoice voice control working.
Step 1: Pair your headphones with the Gym Monster
Plug the Avantalk C82, or a similar USB Bluetooth audio transmitter, into the USB hub connected to the Gym Monster, using its USB-A adapter if your hub needs it. Put the transmitter into pairing mode, then put your AirPods or wireless headphones into pairing mode.
Once paired, the Gym Monster audio should route through the transmitter to your headphones. At this point your headphones are not connected to the iPhone for workout audio. They are connected to the Gym Monster's audio path.
Step 2: Choose what you hear: music, trainer voice, system sounds
The important detail is the music source. Use Speediance Music on the Gym Monster if you want a blend of music volume, system sounds, and trainer prompts.
Some users report that the Gym Monster's Bluetooth or Apple Music options do not blend music with system sounds and trainer prompts the same way. That means you may hear music, but prompts or system audio may not mix as expected. Until Speediance improves that behavior, Speediance Music is the practical choice for this setup.
If the balance is wrong, adjust the Gym Monster music volume and the in-workout prompt volume separately where available.
Why can't I hear the music?
The most common cause is that the headphones are still connected to your phone instead of the Gym Monster's audio path, so the machine has nowhere to send its sound. If that is not it, work through the rest in order:
- AirPods do not pair with the transmitter: reset pairing on the transmitter, put the AirPods case into pairing mode, and keep them close during setup.
- You hear music but not trainer prompts: switch the Gym Monster music source to Speediance Music and test system sounds again.
- Audio is too loud or prompts are too quiet: adjust the Gym Monster music volume and in-workout prompt volume separately where available.
- GMVoice stops controlling the Gym Monster: restart the GMVoice app and reconnect to the dongle.
- Voice commands are inconsistent: move the microphone closer to your mouth, reduce fan noise, and test recognition before starting a heavy set.
How to keep GMVoice voice control working while music plays
Voice control and workout audio run on two separate connections, so they do not fight over the same channel. The iPhone runs the GMVoice app, while the Gym Monster sends music and workout sounds through the separate Bluetooth transmitter.
Connection Summary
BOYA mini 2
iPhone
GMVoice dongle
USB hub
Gym Monster
AirPods / headphones
Avantalk C82
USB hub
Gym Monster
The control side needs its own parts, and again the exact brands are not mandatory:
- iPhone running the GMVoice app.
- GMVoice dongle connected to the Gym Monster through USB.
- USB hub, so the Gym Monster can host both the GMVoice dongle and the audio transmitter.
- Wireless microphone for the iPhone, for example BOYA mini 2 connected through USB-C.
Set the control side up first. Connect your USB hub to the Gym Monster, then plug the GMVoice dongle into the hub. Open the GMVoice app on your iPhone and connect it to the dongle over Bluetooth.
If you are using a Boya Mini 2 or similar microphone, connect the receiver to the iPhone USB-C port and place the microphone where it can hear you clearly. Then test your normal commands before adding music into the setup.
Good first test: keep the room quiet, open GMVoice, and confirm that commands like "Jarvis,Start" and "Jarvis, Stop" are recognized before pairing your headphones for music.
If you do not want to use a clip-on mic, you can still use the iPhone microphone or wireless headphones with a mic for GMVoice. The dedicated mic simply keeps your voice input closer and more consistent while the AirPods are reserved for Gym Monster audio.
FAQ
Can I use AirPods with Speediance Gym Monster?
Yes. AirPods pair like any other Bluetooth headphones. Plug a USB Bluetooth audio transmitter such as the Avantalk C82 into the Gym Monster's USB hub, put the transmitter into pairing mode, then put your AirPods into pairing mode. Once paired, the Gym Monster routes music, trainer prompts and system sounds to your AirPods.
Do Bluetooth headphones work on Gym Monster 1, 2 and 2s?
This guide routes audio out through a USB Bluetooth transmitter plugged into the Gym Monster's USB hub, so it does not rely on any built-in Bluetooth audio feature. GMVoice itself works with Gym Monster 1, Gym Monster 2 and Gym Monster 2s. Whether the built-in Bluetooth audio behaves the same on every model is not covered here.
Can I hear the music and use voice commands at the same time?
Yes, because the two use separate connections. Your iPhone runs the GMVoice app and sends commands to the GMVoice dongle, while the Gym Monster streams audio to your headphones through its own Bluetooth transmitter. Neither path takes over the other, so music keeps playing while you say a command.
Try GMVoice
Download the app, choose the mic setup you already have, and start training with your voice.
Related guides
- Stream Gym Monster Audio to Your Headphones with GMVoice (Wi-Fi and Hybrid Mode)
- Best Speediance Gym Monster Accessories (2026): Tested & Ranked
- How to Set Up GMVoice Siri Shortcuts on iPhone
- How to Record a Field Debug Session in GMVoice (Step-by-Step)
Planning your next session? GM Manager builds Speediance workouts in your browser.