A:AnswerHello. Bluetooth is only switched-off when the DHT-S217 is switched off. The DHT-S217 only transmits a signal when it is paired and connected to another device.
A:AnswerHello, please reach out to our technical support team. We can be reached via phone, email, or live chat. https://support.denon.com/
We look forward to hearing from you.
A:AnswerI connected it in-line with my apple TV 4k and have CEC on for the TV. My TV is an older VIZIO 3D Smart TV it gets the volume from the TV just fine. My tv says Audio system Volume and I did not have to change anything. as long as the TV supports ARC (Audio Return Control) then you are fine.