the illusion of 3d without the need for a headset. it would certainly be nice not to have to wear the glasses for this kind of experience. yeah, they are chunky, aren't they? so at the v&a, we each wore a hololens, but you've tried a different type of ar glasses, haven't you, from nreal? yeah, that was at ces in 2020. i was impressed with them, i have to say. well, they were quick to sell out when they were released in the us, and chris fox has been testing them for us. but do they deliver the augmented reality future we've all been promised? i've tried a few augmented reality headsets in this job, and these are probably the closest to a practical consumer product i've seen. the glasses have to be tethered to your android smartphone to provide the visuals and also the battery power. and that means you don't have to charge your glasses, which is great, but it will charge your phone's battery a bit quicker. it has built—in speakers and microphones and cameras on the front to track the room so that the visuals all stay in the right place where they're supposed to. and you have full freedom to get up and walk around and look at things, and the perspective changes as you move.