re: Tiny mic and amp
I’m going to try this out. I have a portable Li-ion USB battery that I should be able to use with the TV Connector, and I just ordered a mic and amp to connect to it. There are a lot of options out there. I ordered this one via Wish.com. You should be able to find it via the following description.
2.4G Wireless Microphone Lapel Style MIC Receiver Transmitter Voice Amplifier Recording Plug Play Portable for Teaching
Once it arrives, I’ll try it out and let folks know.
I figure this arrangement could work nicely. The person that you want to amplify would wear that mic, which would transmit to a battery-powered receiver connected to the TV connector (powered by a USB-battery pack).
Of course, you could also connect the receiver directly to a smartphone and then transmit to your HAs, if so equipped, but then you would likely have the sound-delay issue.
I don’t see this as an idea setup–more as a proof-of-concept attempt.