The headset can be connected wirelessly (via the USB dongle) to PS4/5 and Windows PCs. According to tests, it also works with current Macs (unfortunately, I don't know whether Apple TV is considered a "Mac" in this sense).

The supplied cable can also be used to connect to other devices such as mobile phones, provided they still have a jack plug socket.

I am not confident about the connection to the TV - the dongle will probably not be recognised. However, I have no experience with this.