The resolution (480*272 pixels) is terrible. It's not even 480p. I have a hard time imagining what it could be useful for. I tried playing through an old Sega Genesis (thought a low res might work) and even that didn't look good. It's cheap, it's tiny, it's lightweight, the focus is adjustable and it really works. That's all I can say about this good. The built-in speaker is actually useless. Maybe you could use it to project really simple shapes and colors?
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