Electronics Question
 

I am preparing for a trip to Europe. I wear hearing aids and use a Bluetooth device that hangs around my neck that feeds audio to my aids. My Bluetooth device has a 3.5 mm female port to connect other audio source input. If I want to watch movies in our business class seats, how do I get that audio since I can't wear a set of headphones provided by the airlines?

You just need a male to male 3.5mm connector cable which can plug into the audio out from the IFE system and into your bluetooth device. Just search amazon for "3.5mm audio cable" - there are plenty of these available, and they are relatively inexpensive ($4-10)