I've looked at a few of these recently and this is my favorite. First of all, the neck part is flexible, which makes it extremely comfortable to wear. I also like the spacing of the ventilation openings, which ensures even and wide air distribution. The fans are powerful but noisy on high settings. That seems inevitable to me. Build quality is decent, which is to be expected for the $20 price tag. Don't beat them up, but they should hold up well on a non-air conditioned European train. (Seriously, if you're going to Europe and you're used to US air conditioning regulations, bring a fan or two.) My only real gripe with this fan is that it uses micro-USB for charging. Everything should be USB-C for now. With that one change, it would be almost perfect!
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