Logitech Ergo M575 Wireless Trackball Mouse, Black

It's pretty comfortable ergonomically. wrist and hand orientation comfortable, orientated at about a 30deg angle. scrolling wheel is typical to others. mouse ball was a little tough to get used to en lieu of moving the mouse. Seller: It wouldn't let me rate the seller for some reason, but NipsFlips sold the product as new and it should have at least been listed at open box. The box was taped up and two white unused shipping labels were wrapping the box to cover an old shipping label. Factory seal stickers were opened and packing tape was wrapped around one end.

Logitech trackball are a slice of awesomeness. Been owning them for over twenty-five years. In fact, I've never owned any "bad" Logitech product... period!

I ordered this because I searched on WalMart .com for a Mac Book Thumb Mouse and this came up as compatible. Its Not. Sending back as not compatible requires USB3 connection.

This mouse worked fine for almost 90 days, then the courser disappeared. i cleaned the ball and the area where the ball goes, but that didn't help. The scroll works, the right %26 left click work, but no courser,

It significantly different from a conventional gaming mouse, I'm having "growing pains" using it. In time I'd probably rate it 5 stars. I didn't really have any choice my carpel tunnel has been flaring up I used to use a marble mouse when I was a systems engineer and had same wrist problem.

As stated previously, I have NOT received this item and do not know when or if I will receive it though it has been charged to me. How can I possibly review a product I have not received?

I made a mistake after purchasing this trackball and didn't realize that it used Bluetooth and came with a USB Bluetooth dongle included ... my mistake, but everything ended up fine. I bought a Bluetooth USB adapter later that included audio input and output later and ended up being able to use this trackball with added audio capabilities, all on a single USB port. Regarding battery life, I've been using it for about a month now using a single AA battery and it has worked fine. It appears to go into a sort of 'sleep mode', if you don't use it for a while, but simply rolling the trackball for about a half second wakes it up, so I assume the battery life is good. It was a bit more sensitive than I was used to, largely because it rolls very smoothly, whereas my old trackballs had more friction. This is basically good though because it will likely last longer with less friction, and it is simply a bit of a challenge for me to be better able to control my fingers. Overall, this trackball works fine and I have no complaints - I did not read the manual closely enough to realize that it ALREADY included a USB Bluetooth dongle, but that is fine, the one I bought added audio I/O capabilities without needing a new ISB port, which is fine ... I enjoy playing computer games, and having audio is great :) Best wishes, if you purchase this trackball. Seems like it will work rather easily (and don't forget to check for the included Bluetooth adapter inside the battery compartment, like I missed ;) )

This trackball is an updated version the M570, which is an updated version of a USB corded version that I used as a replacement for an older "multipin" version that I started with many years ago. Trackballs are a great way to help prevent CTS caused by the awkward wrist angle that a mouse causes. After 20 years with a trackball, I wouldn't consider using a mouse with my computer.

Device came in a timely matter.. had no issues working on the first try.. perfect for what I needed it for.

Replaced two cheap knockoffs with these. Excellent performance and reliability