So far I have been using it for 3 months for 5-10 hours a day. The utility shows 1010 remaining days of battery life. It is unlikely that they will last that long, but even if the batteries last a year, this will already be an achievement. The mouse for my male hand has an ideal weight (for a female, you can remove one battery, which will reduce the weight of the mouse a little) and almost perfect ergonomics. There was a problem with the usb transceiver. At first I was very angry, as it turned out in vain. After a call to those support, they promised to send me a new PPU usb by courier in a week, but in reality they sent it in just three days. Shipping was paid for by Logitech, which was very nice.
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