Left Handed Mouse Ergonomic, Wireless Vertical Mouse, FIRSTMEMORY 2.4G High Precision Optical Mice 800/1200/1600DPI for PC Laptop Desktop Mac (Left Handed Ergonomic Mouse)

I absolutely love this mouse. I was forced to get a left hand mouse since I couldn't use my right hand for a while. This mouse is so comfortable. It is more ergonomic than the downward mouse. It does not cause any strain on the wrist and is super easy to use. The only negative is that it tends to double-select options on its own. I am not sure if it is me trying to get used to a left-hand mouse or the mouse itself. I highly recommend it. I will also get the right-hand option when I have to go back to right-hand mouse

The great ergonomic of the mouse is killed by the optical issues, the sensor seems to have serious problems, won't work on any surface, you'd need a specific mousepad with a notable design and no dark colors, still, it has serious problems trying to catch up with the movementI tried for 3 days and I got really tired of it on my wrist, I was about to return it, then noticed that it worked rather good on a different mousepad so decided to give it another shot, but now it seems it won't work on any mousepad or surface, you have to fight it to get the mouse pointer moving...I'm so disappointed and the return period has already expired, don't recommend this at all

If you buy this, plan to get a mousepad with a design on it. On a solid color work surface, the mouse doesn't track well at all.After using this mouse for a couple of days, I find the device to be too big in general. I wear a size 9.5 (large) glove. The mouse feels too big. If it were 20% smaller, it would probably be a better fit. Cool concept, but I would pass.

I really wanted to like this product but after just two weeks, I disconnected it! It feels good in hand but that's only the only good thing I can say. The response time is so poor and it has such bad lag that this mouse quickly becomes a source of frustration. It's more an impediment than improvement.

Does not work after nine months and actually didn’t even use consistently. A big reason I didn’t use was because it does t work well on most surfaces. I have the same type of ergonomic anker brand right hand mouse and that works great on any surface. Been using that for almost two years.

I like the grip of it, it's easy to use I like that it changes colors which I didn't notice that when I bought it. I really love the mouse it's light. I like that it is wireless. I use the mouse for my pc

Very disappointed with this product. The mouse lags and uses a lot of batteries compared to the one I had prior to this one. I do not recommend this product.

Works pretty good. Took a few weeks before it felt totally natural.

I found out the scroll wheel was not working, but it was too late. If you buying make sure mouse is fully functional.