The rules changed fairly recently, but lufthansa.com now says: > You can use your Bluetooth headphones during the entire flight without restriction – even duri

The rules changed fairly recently, but lufthansa.com now says: > You can use your Bluetooth headphones during the entire flight without restriction – even during take-off and landing, unless the crew instruct otherwise. britishairways.com: > Bluetooth devices, e.g. wireless keyboards or headphones, can be used during the flight but must be switched off for taxi, take-off and landing. I believe that Bluetooth was prohibited on Lufthansa as recently as 2017, so it might be worth to check for each airline you're using.