https://www.cnbc.com/2018/07/24/noveto-speaker-startup-demonstration.html

The first time I tried Noveto’s “focused sound” speaker, the whole experience felt both exciting and a little bit bizarre.

The start-up has created a technology that can deliver audio directly to a single person, who's not wearing headphones, allowing everyone else in the vicinity to go about their business uninterrupted. Meanwhile, the listener can also still clearly catch surrounding noise.