Review on GeeekPi 2Pcs Raspberry Pi 4 Quiet Fan by Daniel Pierce

I bought this to replace the standard fan on my Raspberry Pi case. It doesn't cool as well as the stock fan (about 1-2 degrees Fahrenheit warmer), but it works well enough and shines nicely. My only complaint is that there's a high-pitched whine that's only really noticeable when the fan is spinning on). Otherwise it's quiet in the room, but it's still in the background.As I get older and my hearing gets worse, I'm sure it won't be a problem.