MX-21 Black and Gold Wireless Headphones $29.99 $22.99 USD
A TV headphone set comes with its own transmitter base, which is what separates it from Bluetooth headphones used with a television. The base takes the audio output directly and sends it on a dedicated link, avoiding the lip-sync delay that Bluetooth can introduce.
The base also charges the headphones between sessions, so the set lives by the television rather than in a drawer.