Cool looking but noisy when turned on full
930650
The fan works good and looks amazing. But when you turned it on high, it's quite noisy. Also when it turns, it makes this clicking sound sometime.
1415753
The design is really nice I do like the fan. We have it in our living room and it's good at blowing the air around. However I just bought this in March and I have rarely used it since I bought it only at night when watching T.V and I just noticed the other day that it is making a lot of noise like one of the fans is going out. So I have a feeling will be calling customer service and see if they have any recommendations. If that was not happening I would probably give it a 5.
2961079
Pros: looks nice, well-built. The DC side of it (for the USB ports) operates whenever you have it plugged in to a power source, with no noise.

Cons: Noticeable fan noise if you power up the AC side of it. Also, the power output might be a bit of a noisy sine wave - when I plugged a desktop computer into this unit, I got a buzzing from the computer's power supply, which is often an indication of a noisy signal from the inverter. I stopped using it for computers, because I was worried about damaging the expensive power supply in them.
1674237
After about a month of moderate use one of the fans started making a clicking noise that is pretty irritating, especially at night. These fans are fairly noisy, maybe too noisy for some at night but ok for day use.  They are very nice looking fans.
1214460
Has exactly the features I wanted without extra ones I don't.  Looks great, perfect size.  Seems to move the air through the filters nicely.  But .. unfortunately my unit had a high-pitched whine which got worse at higher levels of the fan.  I love white noise, the low rushing sort, but this sound was in addition to that and I found it too distracting.  I had to return it.  Too bad since otherwise this machine is really nice.
4945861
Design is nice, looks good, very portable.

Speakers are decent given the price but you do get what you pay for here.

Biggest problem is the music will sometimes randomly increase/decrease to very loud levels.  There must be something wrong with one of the electronic controllers governing the volume.  This is a very frustrating issue.  I would say it occurs on a random basis very 5x to 10x uses.  I saw some other similar complaints with users blaming using both batteries & the plug in power source at the same time.  That has not been my experience.  To date I have only used the plug-in power source to power the device, batteries have yet to be used/tried.
2555454
There's a lot to like about the design and construction of this laptop cooler, and based on other reviews, I wonder if I got a defective one.  I say that because the fans are quite audible even on the lowest possible setting, making a noticeable clicking noise in addition to the more common sound of air moving.  Because it is at least as loud as my laptop is when the laptop fan is running full blast, it defeats the purpose (for me) of using it as I wanted things to be quieter overall.  That, and my laptop fan still runs even with this on...which also defeats the purpose of using it.

The things that I really like about it, and the reason for not going below three stars even though it doesn't do much for me, are:
(*) Fans aside, it's an excellent platform for elevating and angling your laptop on a desk.  It has flip out tabs on the front to keep your laptop from sliding off, and flip down tabs on the bottom to angle it towards you.  One knock is that the flip down tabs on the bottom don't have any rubber padding on the tips that rest on the table if you flip them down - but they do have pads on the sides that rest on your table if you leave the tabs in and set this down flat
(*) It's nicely made.  I was very impressed with the quality of it when I unboxed it.  Granted, my fan noise is probably due to some quality issue...but it's not a cheaply made piece of gear.  It feels nice and solid
(*) The LED lighting is a nice touch.  A bit unnoticeable when you actually have a laptop on it, but it looks cool otherwise and is easily turned on and off with a switch
(*) It comes with the necessary USB cable to connect it to your laptop (or any powered USB port) to power it up

Things that I'm not a huge fan of:
(*) The dial for the fan (and switch for the lighting) is on the far side where the hinge for your laptop's display is, so it's not as convenient as it would be if the dial was on either the left or right side as that would be easier to reach
(*) It's loud.  Hopefully that's just mine, as my rating is an anomaly at the time that I'm posting it, but I'm rating my experience - and mine is louder than I'd want in a cooler whose purpose is to quiet down the fan from the laptop.  Sure, I can't hear my laptop fan as well...but unfortunately that's only because these fans drown out the noise of it
(*) It doesn't seem to reduce my laptop's fan speed much, if at all.  When I play a game, my laptop fan still spools up just as if I wasn't using this.

I admit that I'm rating it as three stars because I'm assuming that mine is at least a little louder than the norm, given how well other people have rated it.  If I thought that they were all like this, it would probably be two stars.  I love how nicely made it is, and it's designed pretty well overall (not perfect, but well), but it's too loud for me to want to use it.

(I received a free sample for an evaluation and honest review.)
4749156
When no content is playing, there is a static/white noise. Hiss sound. Great design and looks though.
2357662
Looks good and seems to cool ok but this unit is very loud.  The unit is level and plumb yet rumbles and vibrates when cooling.  When it dies, I will research and buy a different brand.
454720
It looks and works great, but unfortunately, when I try to use the aux out of the TV, this guy adds a significant amount of noise. If you ever use your TV''s audio out, I would be wary about using this.
2953053
Nice looking fan, but has started making a horrible rattling noise on and off throughout the night. Much more prevalent at low/medium speeds, but has started doing it more often on high.
3060571
Pros:
Great looking fan. Moves lots of air. I dig the light.  The remote offers lots of functionality that I don't see in many other fans, including several "breeze modes" which varies the fan speed to imitate a breeze.

Cons: It makes noise. There's a clicking noise at the low to medium speeds that I just can't accept.

I bought a used fan thinking I would save some money, but I think I got someone else's lemon.  Definitely don't buy it used.  Then I bought a new version and paid full price. It was a little bit quieter but still makes some clicking noises.

Unfortunately for how awesome this fan could be, I can't recommend it due to the clicking noise.
3482466
Unfortunately there is a hum that drives my wife insane.  Its very unfortunate because it provides a ton of power for the price.
2962525
power supply works great but when the fan comes on it is a bit noisy. O.K. in a workshop but not in a bedroom! I think I will see if I can jerry rig the fan to run slow all the time instead of running full speed occasionally. I am running the supply at 3/4 of rated power.
2226211
I love the look and such. But when people say it's loud.. Believe them. I've yet to come up with a solution for it but if someone does please let me know it's just annoying more than anything
1900191
I dealt with the noise of it by keeping it on all the time like white noise. After a while, I forgot about what that loud hum might be. I had smoke from wildfires this summer and it was a great machine to have.
74708
This unit really looks nice and husband liked it although i give it a 3 stars due to he can't completely shut it as the slight vibration from the fan will cause a loudly vibrating sound on the unit cover.