NuleaM505B Wireless Trackball Mouse, Rechargeable Ergonomic RGB Rollerball Mouse, Easy Index Finger Control with 5 Adjustable DPI, 3 Device Connection for PC, Laptop, iPad, Mac, Windows, AndroidCarbonfree Certified

I've been using an elcom thumb trackball mouse for a couple of years. I was "underwhelmed" when I got that one, as it has a very cheap, jankety feel to it. This one, the Nulea, is what I was hoping for when I ordered the elecom. The Nulea has a very solid feel, the trackball is insanely smooth and satisfying to use. The buttons have a very solid click (my elcom will audibly click sometimes, without registering on the computer. Very annoying.) It has a nice matte finish to it. I imagine that'll probably wear through fairly quickly, but it sure looks and feels nice while it's new.Even though it took me a couple of times to get used to, I prefer the index finger location for the trackball, as it feels easier for me for fine motor skills.It pairs nicely with my PC and my iPad via Bluetooth. I haven't tried the dongle, I'd rather not have that hanging up on my computer bag when I put my computer away. So far, it seems that I won't have to. Yay!The only thing that I am not impressed with is the scroll wheel with the iPad. It seems to vary in speed as you scroll through content (perhaps in relation to what you scroll through? I haven't figured that out yet). I'll be spinning it as fast as I can and the page I'm on will be barely crawling by, then it will suddenly lurch forward at a speed you would expect, then return to it's turtle pace, seemingly randomly.I've only used it for a short time on my PC, but the scroll wheel seems to behave perfectly on it.It came charged, I have not had to charge it yet. Nice not to have to put batteries in it.Packaging was really nice, I typically don't care about that much, but unboxing this thing made me think that it was going to be high quality. I have not been disappointed.I love the size of the trackball, but I kinda wish the whole mouse were smaller. It is reasonably comfortable, but I'd like to take it with me sometimes, and it is huge. There is palm support engineered into the back of this thing. It seems to me that they could have eliminated that by chopping 2" or so off of the back and allowed your palm to rest on the desk, then made the whole mouse 1/2-3/4" shorter, vertically. But, maybe they tried that and this felt significantly better? If your not packing it in your computer bag, it's fine as it is.Bottom line, even with my minor gripes, this is my favorite mouse to date. This thing is solid and is very satisfying to use!

I've been through a lot of mice, touch pads and trackballs over the years. After using the touch pad on my laptop computer for the past couple of years, I was having trouble with shoulder and arm pain. I know from past experience that a trackball would relieve the stress on my shoulder. So I went shopping for a good compromise between quality and cost. I was surprised that this trackball has the same specifications as trackballs costing more than twice the price.Setup on Windows 11 with Bluetooth took less than two minutes. Most of that was finding the right menu on Windows. I did spend some time playing with settings only to return to the default setting.The buttons on the bottom are generally only needed when first setting up. The trackball goes to sleep to conserve battery and wakes when you touch it. The DPI button is redundant with Windows and you are unlikely to switch the link choice once it is set up.The feel of the trackball is nice. Pointer movement and scrolling are smooth and pointer accuracy is good enough for cad and graphics programs. Switches have a light touch with no sense of pressure or bounce. Left button is on the thumb along with the scroll wheel and page forward and page back buttons. The right button is to the right of the ball. The housing has rubbery pads on the bottom to keep it from sliding around on the desk. The housing is heavy enough to have a solid feel.The trackball arrived with the battery at 85% and topped up quickly when connected with the supplied USB-C cable. An LED indicator shows the charging state, red when charging and green when done. There is a light ring surrounding the ball that looks pretty but doesn't appear to serve any practical purpose. It can be turned off.I'm happy with my purchase and would recommend this trackball to anybody needing one.Edit: IMPORTANTIf the trackball fails to connect with your computer by bluetooth, depress and hold the bluetooth selection button on the bottom of the trackball until the bluetooth led flashes rapidly. Windows should now detect the mouse and establish a connection to it.