I didn’t buy this for gaming, but I work from home and during summer my mouse hand does get too warm. The fan is subtle but works well to keep my hand dry. There is an off switch to turn it off when not in use.My daughter has hyperhidrosis of her palms. She someti struggles with her mouse but she very much enjoys gaming and I hated that something she enjoyed was being effected by her issue.This mouse works exactly as desc and has been a godsend. I am so happy to have found this for her.Ordered this a few months ago and have been loving it. The fan is subtle so your hand won't get super cold by using it, but it will keep it from getting too hot and sweaty, too. And if you don't need it, you can turn it off with a button on the bottom (same with the lights). We'll see how long the mouse lasts, but it's holding up well so far.My first thoughts on the mouse were that it was extremely lightweight and smooth, HOWEVER, the mouse has a serious problem.Whenever the mouse is moderately slammed or turned, the mouse misfires and clicks from the left or right buttons automatically. I am hoping that this is a hardware defect, butBought this item directly through manufacturer and it was very cheap and broke very quickly after purchasing. I have reached out to their support as they offer a warranty and I have not heard back after 6 emails. Great for the month and change that it worked though.My hands got sweaty and i was hardcore gaming and it dried my hand and kept it dry! Wow! First day, but i am impressed. The website marsback.com list this as 99.99 so this is the exact same one for A 3RD OF THE PRICE. COP this now!