[tech4all]

Overall I think you might be on to something. I have a nice set of bose noise cancelling headphones but I don't like to wear them for the entire day.

My particular challenge: my home office is pretty quiet except when my extremely high-pitched-voice retired lady neighbor is scratching around in her garden while bossing her henpecked husband around. In that case she is just on the other side of my exterior wall and is basically 9 feet away. I've tried to deal with it by putting some small bluetooth speakers against the window but, as you pointed out, that music has to be pretty loud to drown out her whine.

If your solution would help in this scenario you would have a customer!