Still looking for a mouse.
933940
I did not read the reviews before buy, my mistake.  This mouse is terrible.  I have had my computer go down, instability of my webpages, some just are closing with me doing it.  Feel a bit scary like someone is trying to steal information...  anyhow, bad purchase on my part, not happy, would like a wireless mouse, however after this experience, one with a cord isn't looking so bad. But it looks great, probably become a paperweight.  BOTTOM LINE DO NOT BUY THIS ITEM!
1204384
Kitty likes The but not as much as the two toned mice I can't find anywhere
4208995
The weights were already installed which leads me to believe it was used instead of new. Also, the 12 button keypad does not work. The website does not offer viable help nor driver updates. It says it has updates but the RAR file requires a act of Congress to open. Too much trouble. In conclusion, it would seem I was sent someone's problem instead of the new mouse I paid good money. Also, the act of returning it is made to where it is soooooooooo inconvenient it is not worth the trouble. Hey, UTECHSMART, be a sport and just send me another mouse, a new one this time please.....
1087413
Mouse is smaller than other mice I own, to a point of being uncomfortable/distracting during use. If you have large hands you might want to get another mouse instead (eg Logitech).
4371028
I won't pull punches, the mouse is great.  I delivers on just about all of it's advertised features.  Of course it still won't work perfectly on every surface.  Felt mouse pads are still the best.  But I honestly don't think  all those nifty features make it worth nearly three times the price of your  standard mouse
3880773
The mouse I got is different from the product image. I purchased this particular one because it was the mouse I am looking for and I like how it looks, I am disappointed when I opened the box today to find a different mouse from the one I was expecting.

You should deliver the same product you are posting, not a different one!!
373164
I was please with this product when it arrived and how it was packaged. However I am having a hard time with the mouse. It seems to work when it wants. The computer cover however is doing the job efficiently. Thanks
3219761
Didn't get delivered and got refunded.. Wanted to try it out.. but my new mouse is better :D
4673614
Beter than mouse but even trying to use the TOUCH adjustment not up to my needs because ot the large monitor
2493674
Looks good, mouse can not handle the pattern. So of no use except for a coster
419290
I just keep buying them because I'm now accustomed to using this mouse. This newest model isn't as comfortable on the thumb and every naga mouse I've received has had various problems within a year. I'd prefer to give it 2.5 stars, but I will settle for 3.
1852293
You can buy a mouse WITH the unifying receiver&nbsp;<a data-hook="product-link-linked" class="a-link-normal" href="/Wireless-Mouse-M317-with-Unifying-Receiver-Black/dp/B00M55BIXG/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">Wireless Mouse M317 with Unifying Receiver - Black</a>&nbsp;for the same price as the receiver itself. Something doesn't feel right in the pricing. Should be 5 bucks.
3137384
The problem with this mouse is scrolling down a web page.  Sure it has a way to do it, but it is counter intuitive.  I guess I had high expectations for this mouse as previously, well a few years ago, I loved a similar Microsoft trackball mouse that is now discontinued and sells for hundreds of dollars.  I would return it if i was not past the return date.  Too bad I bought it from Amazon and did not buy it from Costco.
474545
The mouse is not working properly and i am in email conversation with the Evoluent support over it.
I will get back after it is resolved.
1080613
The mouse is so sensitive, the cursor keeps moving when I'm holding the mouse even slightly. I finally stopped using it and went back to my old mouse.
1213801
Sometimes the mouse doesn't response would have to shake it a lot to wake it up.  Price of the mouse is okay.
1502611
I love the mouse, but unfortunately the right mouse button broke. It is still under warranty, and razer's support has told me it will be replaced, but after talking to them two times (three if you count the first time I called, waited on hold for an hour to talk to somebody, and then was hung up on) I still have yet to get the promised confirmation email that my replacement is on the way. Each time I talked to them I was told that I would receive an email in the next day or two with instructions on how to proceed with the replacement process. It's now been a week since I last talked to them.