Koonie 10000mAh Clip on Fan Rechargeable, 8-Inch Battery Operated Desk Fan, USB Fan, 4 Speeds, Strong Airflow, Sturdy Clamp for Golf Cart Office Desk Outdoor Travel Camping Tent Gym Treadmill,Black

Quick summary: this fan provides sufficient airflow for personal cooling (much more than most small USB or battery powered fans provide), in a compact package with good battery life and multiple charging options. The only flaw so far is that it is too easy to activate it accidentally.Full review:To set the context, heat is my enemy. I hate warm weather. I keep my house at 68F and I always have a fan running at my desk or beside my bed. So when planning a two week trip to Italy in the summertime I knew I would want to bring a fan with me.In the past I have used the small 4” diameter USB powered fans that are commonly sold on Amazon but the airflow is weak and they wear out and begin to rattle quickly. They also require a USB power source at all times. I also use a Ryobi portable jobsite site fan sometimes but it is too large and heavy to pack.The ideal portable fan should produce ample airflow, pack relatively flat, store enough power for a decent runtime, and be easy to charge. Durability and quiet operation are important factors as well.This fan (The oddly named Koonie) delivers on all counts. Airflow is excellent. Most of the time I have it on the medium setting. It is quiet, and more compact than I expected. The clip folds sideways making the whole fan about 3-4” thick when packed flat. It’s not exactly small but I had no trouble fitting it in a day pack when traveling. I haven’t tested the total battery life yet but after a couple of hours on a train it was still showing full charge (more on that later). It charges with both micro USB and USC-c, which is great. More importantly it will run while charging, so you can power it with a USB-c charger all night and then take it with you on a day trip first thing in the morning. The clip is quite effective and I’ve had no trouble attaching it to a variety of mounting points. I’ve included a photo of the fan clipped to the overhead luggage rack in an Italian train. Overall, this fan has checked all my requirements, and I sincerely wish I’d had this years ago.Nit Picking:- The button that activates the fan is flush with the back surface, and while it’s a perfectly nice, clicky button, it is easy to activate the fan when it’s packed in luggage or a backpack. I found it running on more than one occasion. I plan to put a layer of packing tape over the button to reduce accidental activations.- The battery life indicator is nice to have, but could stand to be more granular. It has four levels: 100%, 60%, 30% and nothing (all lights dead). Many fans have no charge indicator at all, so this is hardly a complaint worth mentioning.Other than that I can’t find anything to complain about. The build quality is higher than I expected and I don’t think it will break unless abused. I should note that I don’t know what sort of bearings it has, so longevity is uncertain. I also haven’t fully tested the max runtime. Other than that I can confidently recommend this to anyone who needs a portable, compact, battery powered fan.Update: I’ve had the fan for a year and a half now. It worked through my trip to Italy, and I’ve since taken it on a number of camping trips, replacing the Ryobi jobsite fan I used to bring. It lasts for many hours, and I’ll clip it to my cot and run it all night. I was in a wedding last summer, and I knew that being in a tux in the heat was not going to be awesome. I brought the fan along with the rest of my clothing and stuff for the day. I found I could easily clip it to places like the table I sat at during the rehearsal dinner and reception (I clipped it upside down, hanging below the table, aimed up at me from the side) and many other inconspicuous spots. It was quiet, discreet, and effective. Heat is my weakness, but this fan is my secrete weapon. I’m quite pleased with it.I’ve also run it for days on end at my desk. It is every bit as quiet and powerful as it was when I got it.

I've tried a good number of portable rechargeable fans, and folks, this is it. You can easily pay three times as much for half the airflow and battery life that this little beauty puts out. Takes a little bit to charge, but this thing keeps going and going, and puts out stronger airflow than ANY fan of its size that I've used. Highly recommended.

I couldn't ask for a more perfect fan. It is soooo quiet yet powers1 out a great amount of air. It can clip or stand on its own. You can also rotate the fan by hand to find the best position to keep you cool. There are 4 settings which make it easier to find exactly the amount of air you need. It charges very quickly and the charge lasts forever. It's perfectly sized to fit into a small nook or clip onto a window sill or desk corner. It's built to last that's for sure. I am going to gl uh for some of my coworkers

Best portable fan ever! A full charge lasts so long! I've had the fan only a month and has had one full charge upon delivery. I've used it at 5 Texas outdoor events in over 90 degree weather. Fan kept between low & medium for 3-6 hours at each event. Amazing battery life! I recommend this to everyone! Im a hot natured, curly thick hair, plus size woman so I am HOT HOT!

Received the fan and it works ok. Fedex dropped it off in the driveway (several feet away from the garage) and the box was soaked due to heavy rain.

EXCELLENT, AWESOME, FANTASTIC RV FAN!! Seriously, I don’t write reviews unless I’m really impressed or really disappointed with a product. This fan totally exceeded expectations! Great air flow. Rechargeable battery is very efficient. Clip on clamp or stands alone. Minimizes need for firing up the generator to take naps or sleeping at night. Really a great addition to the camper.

Works good. I use it in South Florida for my children's wagon and stroller, as well as when I'm working on my car in the garage. The grip works well on posts and tabletop ends.

I bought the LED display version that comes with a light too. Was not expecting to appreciate the battery percentage display and the light functions as much as I do. Plus, on each of the lowest settings, fan and light, the battery lasts and lasts and lasts. I'll go to sleep with it on 99% and wake up with it on like 96, hours later. Granted, like anything, more power = less battery optimization, but truly the first fan level is enough for me majority of the time. Clips are sturdy too, mine is always hanging sideways under its own weight.