@julieo4 It's difficult to stay on top of the technology available. Several years ago, I found out that the venue, where the Detroit Symphony Orchestra performs, had installed a system for people with hearing loss. I was able to obtain free tickets for a practice session! The system turned out to be a Sennheiser MobileConnect. The system broadcasts a Wi-Fi signal that is picked up by any smart phone. An app needs to be downloaded to make it work. I was able to use the Bluetooth streaming from my phone to my hearing aids so didn't even need additional head gear. The system worked great except for the problem when the person speaking doesn't have a microphone. I was not able to hear what the conductor was saying but the music was clear. For people without smartphones, you would be given an Android phone, with the app already installed, and stereo earbuds. Some places may require a drivers license to make sure they get the equipment back.
Tony in Michigan