Excellent mouse, in my opinion, the best in its category. I did not notice the problem with double-click, which many people are talking about here. Has some pros: Excellent ergonomics Quality sensor The abundance of keys Holds a charge for two weeks, if you do not lean on the backlight Charges fast Convenient wheel with two modes Easy You can charge the mouse without interrupting work Works over a long distance Some cons: The materials are inferior in strength to the wired version, probably to facilitate the construction, because the batteries have a decent weight Several times there were delays during intensive work, when the receiver was exposed to the USB port of the PC. The USB extension cable solved the problem, now the receiver is fixed at the back of the tabletop, there are no delays.