Customer Ratings & Reviews

This mouse is FANTASTIC!!! It feels great in my hand, and is comfortable to use for as long as I am at the computer. This is the second time I have purchased this device - the first was 8 years ago, and that mouse is still working! I bought a second computer, and without hesitation, bought the same mouse to go with it. I’m definitely happy with the Ergo M575!

This is easy to learn to use. The rollerball style is best for me because I was getting tennis elbow from all the mouses that I use. That is what my Medical Doctor told me about the pain in my arm.

I like this product for two reasons. First, the ability to connect blue tooth so you don’t need to use USB to connect. Second, you dont need a large area to move around.

Good feeling mouse. Feel like it will help in the long run.

Love it. Since I been using this mouse I fell i don't know . Freee

Very easy to use. also I like for the fact that you don't have to move the mouse but just use the features on it to move around

I've been using trackballs for decades. Initially, I started using them because I had a small computer desk and space was minimal. Now I prefer them over traditional mice.

Very good option for me and worked well. Ergonomically a great fit and I hope to have it for a long time.

Great replacement. I Love The newer sleeker design.

I wasn't sure what I was getting into when I purchased this, but after decades of using a mouse and hearing carpal tunnel horror stories, I decided it was a good idea to explore new options. I actually really love this thing. It takes a bit of getting used to, and a slightly different perspective - I kind of think of it as a two-step process of whipping the mouse cursor to the general area where I want it, because it has momentum/inertia, and then fine-tuning it to exactly where I want it. Definitely had to play around with speed settings for a while. Now this is like the only thing I use, I love it. Obviously, you are not going to use this for all tasks, especially not gaming, so keep that in mind.

I have used a trackball from Logitech for many years. It is nice that this one has a Bluetooth option.

I rework of the M570, overall its good, aesthetically an improvement, I did not test it but I feel the range improved slightly over previous unit (or my M570 could have lost range). Trackball movement however is not as smooth as older model. Still this is my favorite mouse/trackball device for Home Theater PC if within 10 ft of PC (use an extension to get better range - need to get transmitter away from PC's and TVs electromagnetic fields) and my favorite for using laptop in recliner (no flat surface needed)

Great Trackball faster than a mouse and more responsive.

Easy to use. I would for sure recommend this product.

Very versatile and easy to use, I don't like to use a mouse.

I use the trackball every day and love it because I don't have to move it like a mouse which is very clumsy and needs a space to move the mouse around to make the necessary locations on the monitor for the commands you need in your work.

I have been using these since 1990, wouldn't use any other.

I had one of these years ago when the ball was red. This one was not smooth. There is a weird feel to the ball, like it's grainy. I don't think it's supposed to feel that way. Other than that, the connection is good (fingers crossed it stays that way) I appreciate that this is bluetooth.

Great mouse, scrolls very smooth. battery lasts months.

I have had to use these types of mice at work for about 15 years, because of carpel tunnel. Most people I know don’t like or can’t use these because they are not used to them. But for me they are a life saver. I have 2 of these, 1 for home and 1 for in office work. They work flawlessly, never had a problem.