efluky 3 Speeds Mini Desk Fan, Rechargeable Battery Operated Fan with LED Light and 2200mAh Battery, Portable USB Fan Quiet for Home, Office, Travel, Camping, Outdoor, Indoor Fan, 4.9-Inch, Black

Where has this been all my life? I never write amazon reviews, but I was so impressed with this product that I just had to make an exception...I am a chef/manager so half of my time is spent in a hot kitchen, and the other is spent in an almost equally hot office. I was looking for a USB fan that could give a little respite and I absolutely hit the jackpot with this one!Where do I begin? On its lowest setting, this fan provides a gentle breeze from almost 2 feet away. It is quieter than most computer fans. Second setting is something similar to the highest cool setting on the most powerful hairdryer you've ever owned. A shade louder but completely unobtrusive and still easily felt from 2-2 1/2 feet away. The third setting is more powerful than some regular fans that I have owned, and still pretty quiet at that.It is charged via USB and it uses the same lithium ion battery that is found is most e-cigarette vape mods. In a pinch, you could take the battery out of your vape and use it to power this fan. Plugged into a USB charger/port it charges whatever battery is inside it. So if for whatever reason... if you wanted, you could conceivably stealth charge your vape battery. Plugged into a USB port the fan also works without any battery installed at all. You can also take this battery and put it in your vape battery charger if you have one and charge it that way.A fourth click on the "on" button turns off the fan and activates an LED light on the side. It isn't as bright as the one on most smart phones these days, but I could see it being useful in certain situations.At any power setting, if you hold down the "on" button for 4 seconds, an LED illuminates the blades in the center of the fan. It is a cool looking effect, though I wouldn't personally use it unless it was plugged in as it would just put additional drain on the battery.Finally, it is a nice compact size. That is perhaps is the most impressive part, especially considering how much power it has! I have included a picture of it in my hand. Admittedly, my hands are a little on the large side, but it would still slip easily into a laptop case or perhaps a purse. It is only about an inch and a half thick.If you're looking for a small USB/battery powered fan you should get one! It's FANtastic! :)

I'm one of those people that cannot sleep without a fan. I need the air circulation and the soft noise. I live in a city that is notorious for the power going out, and I go out of town a few times a year, so I bought this to try out. This fan is small but it packs so much cooling power! I love that it's chargeable. It has 3 settings and a useful flashlight on the side too. It is great to pack for my hotel nights. It helps me sleep.

This little fan was a life saver when we had a power failure & it was so hot I couldn’t sleep. I originally bought it for a cruise & now I take it wherever I travel because it’s so compact & powerful. Bought a 2nd one for my Dad I liked it so much!

Haven’t had it long, but I love it! Pretty powerful for my cubicle area and I usually only have it on the first speed! Love the cool blue light, great ambiance and it’s not loud. I have had it plugged in since I’ve had it, so I can’t attest to the battery life. Overall, would repurchase!

This is an awesome little fan.I actually own FOUR of these! One for the office, one for home and sleeping, one for travel, and one for lending out. They're quiet, move a LOT of air (on low power, you can feel it from 4 or 5 feet away), and hold a charge like nobody's business. Fully charged, it can run on low for a full night's sleep.Not only have I bought four of these, but others who have seen them in action have ordered them as well. It's a popular item around the office, that's for sure!Perhaps the only downside is the light. It's blue - which looks nice, but red would easier to have on for ambient light and fall asleep to. Other than that, this is a great fan and well worth the money.

What a pleasant surprise that such a small fan can be so powerful! It actually blows cold air. The first speed is pretty strong and quiet so I use that at night. I'll use either the low or medium speed when I'm at my desk and both are strong enough to blow my hair. I took away one star for noise because it does get louder with increased speed, which I would expect, but it would be nice if the higher speeds were a bit softer. That being said, it does not work with the battery alone; it needs to be charged with the enclosed USB cable. Once that has been drained it needs to be charged again; the battery will not sustain it. It's summer now and I haven't lost power since I bought it, but if I do I know I'll be thrilled that I have it (unless the power loss lasts longer than the charge, then I'm out of luck. LOL. I don't know how long it would take to charge in the car). I didn't rate battery life since it does not run on the battery alone and I don't know if the enclosed battery will need replacing. I absolutely recommend this fan.This is an update. I've used the fan for a few weeks now and have discovered that the battery holds a charge for a long time. In other words, the battery does not drain when the fan in not in use.