A big hurdle for doing this is latency, every time you hop from one device to another you're adding at least ~10ms of latency if it's over anything like bluetoo

A big hurdle for doing this is latency, every time you hop from one device to another you're adding at least ~10ms of latency if it's over anything like bluetooth. There might a clever way to do it, it's something I'm thinking about but it's too early to say. For now it looks like it's going to be a behind-the-ear hearing aid. Maybe in 5-10 years it could fit in your ear canal.