Twelve South AirFly SE, Bluetooth Wireless Audio - Link Available in Description

https://amzn.to/47VJ2Kj

Transmitter for AirPods/Wireless or Noise-Cancelling Headphones Use with Any 3.5 mm Audio Jack on Airplanes, Gym Equipment or iPad/Tablets

Special Feature: Quick Pairing Mode
Size: 1" by 4"
Brand: Twelve South
Connectivity Technology: Bluetooth
Input Device Interface: 3.5 mm audio jack/ USB-C charging