It is good and refreshing. What I received does not have triangles on the frame of the fans, but instead it has circles. It has silicone where it touches the neck and it is also cool, it does not heat up with use.
The battery lasted almost 3 hours for me in full operation.
Unfortunately, what I received worked for only 6 days and then stopped without reason and without any impact or drop on the right fan.
No problem of course, since it was purchased through skroutz, so everything was easily resolved.
If I exclude this issue that we all know happens with fans in general, I would be very satisfied with the purchase.
I hope it was just a coincidence with mine and not a common occurrence, but again, it is cheap and has a warranty.

I give it 3 stars because with a full charge it lasts 1 hour and 40 minutes on the second setting. It makes a little noise, not annoying... We will see how long it will last...