After 5 months, one left click works like two. The problem has so far been solved by taking it out and re-inserting the mouse into the USB port. I use it in the office, so I don’t hear at all that it is loud or shines brightly in the dark.

Most upset that the mouse does not stand on all four legs. Fixed with a rug. the wheel DOES NOT RATCH as some write, most likely this has been fixed in new versions

Different pros: The cheapest and most accessible mouse from Logitech, wired, the wire is quite long, reliable, by the convenience of location in the palm of my hand, I can say that this is the most comfortable and anatomically correct mouse, clear, responsive With its cons: After about a year of operation, glitches may begin)) For example, the laser does not work adequately, the cursor starts jumping, etc. But for this price you can buy another, the main thing is to treat the mouse carefully an