Nothing is perfect, and this trackball is no exception. from the point of view of fatigue of the hand - well, no need to crawl on the table. In terms of convenience - yes, it is convenient. But the speed of work is significantly reduced compared to the mouse. In general, if you need to do something urgently, then I take the mouse. For leisurely work and when the brush gets tired - suitable. The loud sound of pressing the keys is annoying. . : lived for about a year, practically did not use it. When I decided to poyuzat - it turned out that it does not work, and in general. In a bucket.
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