The M190 is an entry-level wireless mouse made by Swiss computer peripherals giant Logitech. I bought this a couple of years ago to use with my laptop. It’s an OK mouse, although it feels quite plastic-y and the lack of forward/back buttons is a bit annoying. A while ago the scroll wheel developed an annoying habit of randomly scrolling up or down one line, so I decided to get rid of it and buy a new mouse. Of course, in my house I never throw away any electronic device without dissecting it first, so that’s what I did in this case, too.