A:AnswerI believe they are. I returned them because the reception was poor. I ended up buying a Bluetooth transmitter and using some existing headphones I already had.
A:AnswerI have my earphones connected to AUDIO OUT jacks and they work fine. TV and earphone volumes work independently. Should work for you if properly connected.
A:AnswerBoth tvs have to be smart.My great room tv is a visio bought in 2019 and my she shed is a 2018 visio and the rf headphones work perfectly. My bedroom TV is a 2019 LG TV and it does not work with rf headphones.