The device, which features a screen showing the Muse avatar, will also have real-time voice interactivity and is set to be released in December.

“If you’re not wearing glasses, this is going to be by far the fastest way to talk to your Muse and to show what’s going on around you,” the chief executive said.

Muse, development of which was first revealed by the FT in May, has helped change the momentum of Zuckerberg’s huge bet on AI, quickly becoming the most downloaded app on both the Apple and Android app stores in the US since its launch two weeks ago.