About headphone listening.

Looking for a bluetooth repeater - so I can listen to Gogglesmm (or whatever) from my PC in my office when I'm 3 rooms away in the kitchen.

There's sh*tloads of wired ones, I have one, but I had to go buy a 50 ft. 3,5mm extension to get what I wanted. It works, but, well... it's not the kind of tripping I had in mind...

I would like something wireless, obviously, that plugs into my box down here, that will transmit/send-somehow the necessary signals to an rx/tx gadget for me to keep hearing Billy Gibbons in the kitchen.

I can listen to my music playing on my computer in my upstairs bedroom, downstairs in the kitchen, lounge, front garden, & even in the back yard, & I only use a £14 pair of bluetooth headphones.

I have successfully used a couple of Bluetooth USB dongles with Linux and bought them by searching for "USB Bluetooth Linux" on Google and Amazon and matching the ones which were shown to work.
For the receiver most things will work -- I've been able to use a cheap, random USB speaker/microphone, a laptop running Linux and some other devices with no issues.

You can buy Bluetooth receivers in all sorts of varieties. I have two small rechargeable ones to listen to my iPad and my Linux PC, they were just a couple of dollars a piece. I searched on Aliexpress and found "Hifi" ones for $10-20 - I am sure this is Chinese advertising, however they should be decent enough to connect to your kitchen amplifier.

Went back to the Amaze-in place and found a crapload of Bluetooth Repeaters that I swear weren't there before.
Not kidding - the same search a few days ago brought up diddly-squat.
Whatever you folks did, thank you. :