Approving a guest speaker is not up to me. If it were I"d ask for more information. I think a discussion with Don, David, and Carla would be in order to talk about inviting a presenter. 

The disadvantages of the Dome that I see are that the sound would not be corrected to our prescriptive hearing aid settings and environmental noise would be a problem. They are most likely adjustable for base/treble and volume, but I doubt for much else. Maybe they have more capability. I simply don't know. That's why I'd ask for more information. 

Right now I listen to music from my iPhone transmitted directly to my hearing aids. It sounds good to me, but I'm a musical illiterate and have a profound hearing loss so I have no credibility at all. 

Jim