


Can this Bluetooth 5.4 Transmitter connect to two headphones at the same time and allow independent volume control?
Yes. In TX Mode, this Bluetooth Transmitter supports dual pairing.
Both devices receive the same audio, and each headphone controls its own volume.
Adjusting volume from the TV or airplane screen may change both devices at once.
Why can’t I play audio from two phones at the same time in RX Mode?
In RX Mode, two phones can connect, but only one can play audio at a time.
Pause Phone A before playing Phone B to avoid stuttering or connection issues.
This is normal for dual-connection Bluetooth audio adapters.
Why is there no sound or only one side working when connected to headphones?
Please check:
• The 3.5mm audio jack or airplane adapter is fully inserted.
• The TV/airplane/PC output is set to headphone mode.
• The plug is clean and free of dust or debris.
A loose cable is the most common cause.
Can this Bluetooth Audio Transmitter be used for guitar, piano, or live performance?
This device is designed for TV, airplane entertainment, and media streaming.
Although it supports aptX Low Latency, Bluetooth may still cause slight delay.
Not recommended for musical instruments or professional live performance.
How can I reduce audio delay when using it?
• Prioritize devices with low-latency modes (e.g., aptX Low Latency).
• Stay within 12m of audio source; avoid walls/metal obstructions
• Fewer Bluetooth devices nearby to prevent latency from channel congestion.




Can this Bluetooth 5.4 Transmitter connect to two headphones at the same time and allow independent volume control?
Yes. In TX Mode, this Bluetooth Transmitter supports dual pairing.
Both devices receive the same audio, and each headphone controls its own volume.
Adjusting volume from the TV or airplane screen may change both devices at once.
Why can’t I play audio from two phones at the same time in RX Mode?
In RX Mode, two phones can connect, but only one can play audio at a time.
Pause Phone A before playing Phone B to avoid stuttering or connection issues.
This is normal for dual-connection Bluetooth audio adapters.
Why is there no sound or only one side working when connected to headphones?
Please check:
• The 3.5mm audio jack or airplane adapter is fully inserted.
• The TV/airplane/PC output is set to headphone mode.
• The plug is clean and free of dust or debris.
A loose cable is the most common cause.
Can this Bluetooth Audio Transmitter be used for guitar, piano, or live performance?
This device is designed for TV, airplane entertainment, and media streaming.
Although it supports aptX Low Latency, Bluetooth may still cause slight delay.
Not recommended for musical instruments or professional live performance.
How can I reduce audio delay when using it?
• Prioritize devices with low-latency modes (e.g., aptX Low Latency).
• Stay within 12m of audio source; avoid walls/metal obstructions
• Fewer Bluetooth devices nearby to prevent latency from channel congestion.






































