I work a lot at the computer, which leads to corresponding problems with the joints. Therefore, instead of using the touchpad on the laptop, I decided to purchase an ergonomic set from Logitech - the K860 ERGO keyboard and this trackball. At first I considered a vertical mouse from the manufacturer of the same name, but after reading the reviews, I changed my mind. I am absolutely satisfied with the purchase, largely because I knew what I would get. There are many people to whom the trackpad does not "enter", I suggest that such people feel it in the store. I have been using this manufacturer's products for many years and have never had any complaints about the quality and design.
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