I've been looking for a long time for active 3D glasses that fulfill the following functions: legs, 2) sit comfortably on the nose, allow precise position and tilt adjustment (to adapt to any reclined position in a recliner), 3) be solid with a solid black outline around my viewing area, 4) fit comfortably over my regular glasses, and 5) have fewer charging issues between viewing sessions. This product does all my tasks. I have been looking for commercial products for several years and have purchased over a dozen different models and this is the best of them all. Square, wide-angle lenses offer the widest field of view, springy, inward-leaning legs sit securely anywhere on my head (and flex slightly outward when too tight to make them comfortable), sleek and sturdy construction, big enough to carry Its sitting comfortably on my nose in front of my regular glasses (and has different nose pieces for bigger or smaller noses) and has a battery that lasts for multiple views without having to charge it. I had to change my paradigm to finally buy them as I thought buying batteries was "old" technology. But it turns out to be much more convenient to buy a couple of cheap batteries for the occasional swap than to plug the glasses into a USB port and keep an eye on them between each viewing (hint: the battery cover was screwed on tight and did didn't open it until I found that there was a small insert where the point of a thin knife could easily push it down from where it could easily be fully opened with finger pressure). With the exception of full face glasses, these are the best active 3D glasses I've found. What a relief to finally be able to see my huge screen like I don't have 3D glasses on at all. Highly recommended!
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