The Twelve South AirFly Pro is a Bluetooth wireless audio transmitter that connects your wireless headphones or earbuds to wired audio jacks, such as
Twelve South AirFly Pro Wireless Audio Transmitter/Receiver - White for sale online
Bluetooth Transmitter/Receiver 3.5mm Jack Duo Airfly Pro Connection-Twelve South 811370022598
QuietComfort Ultra Earbuds + AirFly SE Set
Twelve South AirFly Pro Bluetooth Wireless Audio Transmitter/Receiver for up to 2 AirPods/Wireless Headphones; Use with Any 3.5 mm Audio Jack, Black
Twelve South AirFly Pro Wireless Headphone Adapter - White
Twelve South AirFly Pro Bluetooth Wireless Audio Transmitter/ Receiver for up to 2 AirPods /Wireless Headphones; Use with any 3.5 mm Jack on Airplanes, Gym Equipment, TVs, iPad/Tablets and Auto
Twelve South AirFly Pro Bluetooth Wireless Audio Transmitter/ Receiver for up to 2 AirPods/ Headphones; Use with Any 3.5 mm Audio Jack, Black : Electronics
9 overlooked and underrated travel essentials
AirFly Pro can stream Bluetooth audio to and from any 3.5mm jack
QuietComfort Ultra Earbuds + AirFly Pro Set
Twelve South AirFly Pro Bluetooth Transmitter Review: Don't Fly Without It - CNET