@sunnyone I have not used the Listen Everywhere system, but I've used the product from Sennheiser called Mobile Connect. It works well. It basically broadcasts the audio on a Wi-Fi channel so you basically just have to connect your phone to that network like you would with any other Wi-Fi network. You need to also download the associated app. For the Sennheiser system, the app is called MobileConnect. You then hear the audio directly from your phone. Since I have direct streaming from my phone to my hearing aids, I don't need any other accessories. If you don't have streaming, you would use earbuds, headphones or a neckloop (if you have telecoils in your aids/implant). If you don't have a smartphone, the venue will supply that to you with the app already installed. You're typically given cheap earbuds that you keep since they don't want them back for obvious reasons. You should work with your library to discuss the different ways that a person with hearing loss connects to their phone and the accessories that they may want to provide and also how to maintain them.
Tony in Michigan