Needed to have tv volume low and headphones for my husband only to head. did not work that way, returned.
Headphones are not stereo sound but mono sound.
So bummed it didn't work! It does not replace volume level between tv and headset. If tv is muted so are headphones, to hear (partial deafness issue) at high volume on headset, the tv is the same volume. So why have headphones on? NONE! good luck to others who said it worked. ALSO HAD VERY LOUD HUM AND SQUEAL IN HEADPHONES WHEN ON!