2.4G Wireless Right-Handed Vertical Mouse, Side Scrolling and Ergonomic Design Reducing Wrist Pain, 4 Adjustable DPI 800/1600/2400/3600, Next/Previous Page Buttons for Laptop, Desktop, PC (Black)

I’ve always used mice with a center scroll wheel so I wasn’t sure about how well I’d adjust to the side scroll wheel on this one. After a day of use, I’m already pretty comfortable with it. The next/previous buttons are a little bit more difficult to get used to because they’re smaller than I’m used to. The dpi cycle button is slightly larger than the next/previous buttons but it isn’t as easy to accidentally press than I thought. There are no connection issues like I’ve had with other mice. Overall, this is a really solid mouse for this price and I’d definitely re-purchase

This mouse replaced my office mouse and it is much better then the standard mouse. very ergonomic and functional, my only complaint is that my hands are too large for it so the ring and pinky rests don't align with my fingers, but I am also 6'4 with very large hands so it isn't expected to fit my size

I really like the feel of this mouse. it is light but the shape lets your hand sit in a way as to not cause discomfort. switched out my other mouse for this one and my hand does not feel strained. would definitely repurchase.

Pros:Thumb scroll wheel is easy to use and convenientSleek lookComfortablePriceCons:DPI doesn't go high enough. Even the highest setting requires too much movement and its effect is doubled by the mouse being large and heavy (relatively)If you like a larger mouse and lower dpi then this mouse is an absolute bargain at $20.

Good mouse, it's just not easy to adjust to. It helps my wrist when my carpal tunnel is giving me trouble and I need a break from the standard mouse.

Very nice, but mine was defective

Works great. It takes some getting use to

Worked out of the box, that sums up the Pros.Cons...a cheap, flimsy product. Personally would not purchase again.