Purchased to watch TV at night without disturbing the family. Slight sound delay, but not critical. If it really bothers you, you can play around with the settings. If they are on TV, of course. The only thing is that in order for the sound to be output to the speakers of the TV itself, you need to remove the cord from the socket. So if it hangs close to the wall or the headphone jack is somewhere in the depths, it may cause inconvenience in use.
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