Just to confirm, 2.5mm or 3.5mm? I’m no all-knowing audio deity by any means but I’ve only ever heard of a 2.5mm connection being used for a balanced audio signal and never heard of it being included ...

Not every piece of hardware is Bluetooth-compatible. Older gear like TVs, gaming consoles and some in-flight entertainment systems just can’t connect on their own. But a Bluetooth adapter can easily ...