Avantree Relay Bluetooth Adapter for Airplanes

Lavales Bluetooth 5.3 Adapter for Airplane to 2 Wireless Headphones, 3.5mm Jack in-Flight Bluetooth Transmitter Receiver for TV, Dual Link AptX

Lavales Wireless Bluetooth 5.3 Audio Transmitter Receiver Adapter for Airplane, Gym/TVs/Gaming Consoles/Car/PC/Home Stereo, 3.5 mm Jack, AptX Adaptive/Low Latency,Dual Paring,Rechargeable,HD Stereo - Yahoo Shopping

Twelve South AirFly Pro Deluxe Bluetooth Transmitter

Connect Air In-Flight Wireless Audio Adapter for AirPods and other Bluetooth Headphones

eppfun Fly01 Bluetooth 5.0 Transmitter for Airplane Audio,aptX HD Transmitter with 3.5 mm Jack Audio Adapter Dongle - AliExpress

Bluetooth headphone adapters for airplane in-flight movies - Gearbrain

Lavales Bluetooth 5.3 Adapter for Airplane to 2 Wireless Headphones, 3.5mm Jack in-Flight Bluetooth Transmitter Receiver for TV, Dual Link AptX Adaptive/Low Latency/HD Audio for Home Stereo/PC/Gym - Yahoo Shopping

RHA Wireless Flight Adapter review - Pocket-lint

aviation headset bluetooth adapter helicopter BT-Link – UFQaviation

1Mii B05 Airplane Bluetooth 5.3 Adapter for Headphones, In-flight Wireless Adapter With Charging Case