Review on Logitech M570 Wireless Trackball Mouse: Ergonomic Design for Right-Handed 🖱️ Users, Compatible with Mac and Windows, USB Unifying Receiver, Dark Gray (Discontinued) by Petar Dimitrov Velik ᠌

Generally satisfied. I suffered for a month with the dying MX-570 (he worked for 5 years), and after they brought this one, I was happy for two days. Pros below: Works. Able to bluetooth, but did not try. More MX-570. Has a protrusion under the little finger. Got cons: The complete ball feels worse than the blue from the previous model. Rearranged and sliding improved markedly. Feeling cheaper plastic compared to the MX-570. I don’t understand why you can’t pay 500 extra and get the same one, but from magical materials. The little finger slides off the special ledge all the time, so it is useless (the ledge and the little finger).