iClever Ergonomic Wireless Mouse, TM209G 2.4G Vertical Ergonomic Optical Mouse with 3 Adjustable DPI 800/1200/1600 Levels 6 Buttons for Laptop, PC, Desktop, Computer, Notebook

I am so pleased with this mouse! It is very comfortable and very easy to just plug and play, no drivers or special settings needed. It has worked great out of the box for me on iMac, MacBook, and Chromebook.For those not familiar with the vertical/slanted mouse, it might take a tiny bit of getting used to, but it is such a better position for your wrist. There is much less strain on the wrist when it is functioning in the handshake position compared to the palm-down position of most mice. Just ask an occupational therapist about carpal tunnel/repetitive strain.My previous mouse was the Evoluent, which had been the ergonomic gold standard vertical mouse, very expensive at over 100 bucks, and consistently develops serious problems over time: the scroll wheel stops working (instead bouncing the page up and down in place when attempting to scroll), and then eventually the buttons start to double click every time you try to single click. I thought my first Evoluent mouse was a dud, but the second one eventually went the same way. This was so frustrating to have happen repeatedly with such an expensive mouse. I could not bear to spend money on a third, so I searched Amazon for a more economical replacement this time around.The iClever is even more comfortable to me than the Evoluent. I can easily reach the left-click with my index finger, even with my hand resting on the desk, whereas with the Evoluent, which is taller, I either had to reach my finger awkwardly or levitate my hand above the desk while mousing in order to reach more easily. I also like the angle between my fingers and thumb better with the iClever, not too wide or narrow. The mouse wakes my computer up easily with a shake. And if this one ever were to develop problems with clicking, scrolling, etc., at the price point of 20 bucks, it wouldn’t be so painful to have to replace. My only minor complaint with the iClever mouse is that the scroll wheel clicks loudly when scrolled, which can be an issue when I’m using my computer during a virtual meeting or phone call.I bought one iClever mouse and immediately liked it so much that I bought a second for my son. The second one came with an offer of an additional free mouse if I post a review, so that was a no-brainer to get one more mouse for my daughter. They were both able to adjust to using a vertical mouse quickly and easily. I love this mouse and am more than happy to share with everyone what a good replacement this is for the Evoluent!

After researching vertical ergonomic mice for hours due to wrist pain (from RSI/tendonitis), I purchased these three (**with my own money, unsponsored**) to test them out. I have small hands, but if you have medium-large this review could still be useful.iCLEVER ERGONOMIC MOUSE: (Winner)--DESIGN: This mouse has a design and shape unlike ANY of the others (which there seem to be hundreds of on Amazon). The grip is wider with a gap which makes your hand rest in a more natural way; it doesn't cause as much strain or muscle use to click the buttons. It also has a nice smooth bottom that slides around perfectly on different surfaces.--CLICK: Great ease of clicking, and the noise is pretty much silent. It's amazing.--TEXTURE: Soft, nice material that doesn't cause hand to sweat or slip.CONCLUSION: I've been using this for a couple weeks now for 8+ hours a day, and it's been very comfortable and has helped my wrist pain. A family member who has larger hands also liked this mouse best.LEVKEY ERGONOMIC MOUSE (Anker Dupe?)--DESIGN: Comfortable grip, but not as comfortable as iClever. I did feel more strain in clicking the buttons comparatively without the wide gap between thumb and fingers. There is one major design flaw: the on/off button at the bottom sticks out so you can't slide the mouse around on a fabric/gel mousepad. It slides around on a wood desk, but most people buying this mouse are probably using a wrist pad for support so this is a fail.--CLICK: Good ease of clicking, very quiet, but not as quiet as the iClever mouse.--TEXTURE: Great texture, I think I liked it slightly better than iClever but the other benefits outweighed this aspect.J-TECH DIGITAL WIRED ERGONOMIC MOUSE--DESIGN: Clunky, huge, not comfortable on wrist at all. It felt super awkward in my hand and caused more strain than anything else.--CLICK: The loudest click I've ever heard on a mouse in my life. Drove me crazy after one minute.--TEXTURE: Terrible, plastic-y texture that's slippery and will make your hand sweat. Not matte like the others.FINAL THOUGHTS: I hope iClever doesn't change the design or quality of this mouse. Maybe it would be cool if they made two size options (one a little bit smaller and then one larger) to accommodate different hand sizes. But overall, it's an excellent mouse and I'd highly recommend it.