How Does An Aircraft Headphone Adapter Work?
An airplane headphone adapter helps connect your own headphones to an in-flight entertainment system. A plug adapter changes the physical connection; a Bluetooth transmitter takes audio from a headphone output and sends it wirelessly to paired headphones. Choose the type that matches both the seat's audio output and your headphones.
Which type of adapter do you need?
- Wired headphones: Check whether the seat has a matching headphone socket. A dual-prong plug adapter may be needed for a compatible two-socket output.
- Bluetooth headphones or earbuds: If the entertainment system does not provide a compatible Bluetooth connection, use a Bluetooth transmitter with a suitable audio input.
- A different socket or no headphone output: Check the aircraft's entertainment options before buying. A 3.5 mm transmitter cannot connect directly to every seat system.
How does Avantree Relay work?
Avantree Relay receives audio through its wired 3.5 mm connection and transmits it to Bluetooth headphones or earbuds. It includes a dual 3.5 mm airplane adapter and can connect two pairs of headphones for shared listening.
Relay is a transmitter, not a Bluetooth receiver. It does not receive music wirelessly from a phone. A phone, tablet or laptop must provide a suitable wired audio output to serve as its audio source.
How do you set it up?
- Check the seat's headphone output and use the included dual-prong adapter if it fits the connection.
- Turn on Relay and put your headphones into pairing mode.
- Follow the pairing instructions, start audio on the entertainment system, and check the source and headphone volume.
For the full steps and connection troubleshooting, use the Relay interactive setup guide.
What about battery life and audio delay?
The current Relay specification lists Bluetooth 5.3, up to 25 hours of playtime and approximately 2 hours to charge. Actual playtime varies with use. Audio delay depends on the codec supported by both the transmitter and headphones; a low-latency result is not guaranteed with every pair.
Can you use it during takeoff and landing?
Check your airline's current rules for Bluetooth headphones and personal transmitters, and follow crew instructions for your flight. An adapter does not override those rules. See the FAA's guidance for passengers for general information about electronics on board.
Check compatibility before choosing
Confirm the seat's audio output, your headphone model and the airline's policy. See Relay's compatibility details and current specifications before ordering.
