SWMBO & I use pretty much identical mice on our machines. Her's has a nice ladybug motif, whereas mine is boring Logitech silver. But mechanically and electrically they are the same Logitech M-UV69a/55a USB mouse.

And oddly, both of them wore out within days of each other. The left mouse buttons got bouncy and jittery, making use of Thunderbird much more difficult.

We like the mice, though, and see no reason to spend money on replacements. So into the junk pile of disused old serial and PS2 mice, for fresh micro-switches:


Attachments
lm.jpg

Description: Guts of one of the two mice.

sw.jpg

Description: Microswitches.. all very similar. The middle one is one that had died; the others were culled from older, less used Logitech mice.