PSB M4U 8 Headphones in original box, with a spare set of new ear pads, and user guide.

With Active Noice Cancellation - prefect for noisy environments, in my view better SQ ( Sound
Quality ) than BOSE headsets I have had in the past.

These are superb headphones, Bluetooth APTX HD  ( HD is the higher 24 bit bitrate bluetooth connection, 
the very best you can buy ) -  easy battery replacement ( normal AAA  "Triple A"  batteries) 

These were £299 new, so grab a bargain 

https://www.youtube.com/watch?v=nJY8bVuhzks&ab_channel=RichardTech

From a smoke and pet free home !