A:AnswerThis device can connect up to 2 devices (hearing aids) at one time. I'm not sure that it would work for you in a large venue like a Church. We can be reached at 866-580-1978 opt 1 if you have more questions.
A:AnswerYes, this will transmit the audio to a bluetooth headset. It depends on your receiver if it cuts out the main speakers or not. Usually it does not.
A:AnswerAre your wireless headphones Bluetooth? Plug the Bluetooth transmitter/receiver into the output of your TV. Pair the transmitter/receiver with your headphones and it should work.
A:AnswerYes the unit will connect to your stereo receiver and all speakers that are connected to your stereo will be powered. The bluetooth unit will connect to a input on the rear of your stereo. (or front input if you have one.