How exactly are AI glasses supposed to work?

Does it mean if you take an exam with them, the AI solves the questions for you? That sounds like a fascinating feature. Do you have to input commands in advance?
But it doesn't seem like this could work standalone; wouldn't it need to be linked to a phone via Bluetooth?
In that case, couldn't they just have everyone turn off their phones and put them away in the exam room, then return them later?