I use one of these little BT receivers to plug my wired cans into and a Bluetooth sender I can attach to any of my devices with optical out (TV, RPi or Mac)
Works really well actually .. and have had it couple of years already so not an instantly binnable purchase.
https://www.amazon.co.uk/dp/B01K8ANDCI/?tag=pinkfishmedia-21
Plenty of BT senders around but I have couple, one from Avantree and the other by Blitzwolf (the former is available on AZ - the latter is discontinued)
https://www.amazon.co.uk/dp/B07BQYYDNJ/?tag=pinkfishmedia-21
Range from either sender is very good in its own right and I can wander around the whole house (1950s semi) with no dropouts. I only have two as I have one connected permanently to the TV.
Obviously not quite up to the level of a direct wired output from amp or DAC etc. but very listenable nevertheless - and both very affordable