Basically the idea is pretty cool, especially for those who get tired easily or even get ear infections from wearing headphones for a long time. So the sound is external and comes out the front of the temple, next to the lenses. Sound can be decently loud even outdoors because the speakers are so close to your ears, but not loud enough for any form of immersion. The neat trick here is that people around you can barely hear it as the sound is quickly drowned out by nature's white noise. So if they're not sitting next to you on the bus or train, they won't be disturbed. But in the end, the sound is like a decent pair of headphones at best and a $5 speaker at worst. There's no sonic immersion - it sounds rather weak and tinny, with no distinguishable bass and meaty mids. At best, it's a neat gadget that costs $50. I added one star (three total) because the blue light filter on the lenses works really really well. But in this case, your best bet is to get yourself some good blue light blocking glasses, a good pair of TWS headphones, or even a neckband speaker.
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