There may be a lag between what you hear and what you see on the screen when using wireless TV headphones; this is known as latency or delay. This may be quite noticeable in some headphones and lead to sync problems with the sound.
The delay or lag that you experience while wearing wireless headphones can change based on the headphones you choose and the wireless technology they employ.
For instance, the latency you experience with most Bluetooth headphones is likely to be greater than with headphones that employ alternative wireless technologies.