I purchased this for my elderly mother who is staying with us through the pandemic. She does not hear well even with her hearing aids. So she always has the TV turned up to an unbearable level for the rest of us. Prior to finding this, I purchased a good quality blue tooth speaker to set on the side table next to her. But it was still hard for her to hear without still being too loud for others. So I thought I'd try these. With this collar and the speakers directly under each ear, she is able to hear and understand so much better.I did need a blue tooth adapter to plug in to the TV. But I needed it for the speaker I bought previously too and was able to use the same one. I'm not sure if all TVs would need one. But my TV is not very new.This has helped her hear better and made being in the room with her more enjoyable for the rest of us.This is a GREAT product. I would have given it 5 stars except there is a slight delay in the sound compared to the sound coming directly from the TV which makes it annoying to use the TV speaker for anyone else at the same time Mom is using this speaker collar.But overall this was a great solution for the my elderly mother watching TV with other people nearby and it was a great price/value.