We are using an iPhone on a stand as both camera and microphone for Zoom access to church meetings, but the sound quality is poor. We have a proper sound system and would like to use a feed from it (line output) it to replace the iPhone's built-in microphone for the Zoom meeting, using a Bluetooth transmitter so there's no need for wires. Can the Zoom app use the Bluetooth input instead of its built-in microphone? If so how would I set it up? If not, any advice is welcome! We are trying to avoid long wires and additional microphones.
Update: After an unsuccessful experiment with a Bluetooth transmitter - and more research via Google - it is very clear that iPhones can't work with a Bluetooth transmitter - they are not designed to do so. So we will probably need to either use an appropriate microphone on a stand - with inconvenient cable - or re-arrange our stage area and put a laptop or iPhone much closer to the people leading the service. Any other advice welcome!