The ergonomics are very good, the rubberized side grips are comfortable grip. The buttons not click considerably, but in my opinion too loudly.
But the biggest difference is the scroll wheel. It runs so quietly, as if you were switched from agricultural tires to slicks. Genial is the way the Internet forward-reverse function by pressing the wheel on the side. That since no one has previously draufgekommen ...
Another striking feature is that the mouse is no longer, as its predecessor, on a "red carpet" is because obviously you have switched to invisible infrared light.
Was still the size of a cigarette lighter, it has become almost vanishingly small, so that it takes place during transport and in the mouse with my first Logitech mouse receiver - super!
The price-performance ratio I think is very good, I would buy the mouse definitely be back! Sure, Amazon, of course!
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